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Prove that: vertically opposite angles are equal.

Posted by Anik Das 5 years, 2 months ago (9703713)

CBSE > Class 09 > Mathematics

2 answers

Yogita Ingle 5 years, 2 months ago (2577571)

let AB and CD be two lines intersecting at O . They lead to two pairs of vertically opposite angles, namely,

(i) ∠ AOC and ∠ BOD (ii) ∠ AOD and ∠ BOC.

We need to prove that ∠ AOC = ∠ BOD and ∠ AOD = ∠ BOC.

Now, ray OA stands on line CD.

Therefore, ∠ AOC + ∠ AOD = 180° (Linear pair axiom) ………..(1)

We can write ∠ AOD + ∠ BOD = 180° (Linear pair axiom)……………(2)

From (1) and (2), we can write

∠ AOC + ∠ AOD = ∠ AOD + ∠ BOD

This implies that ∠ AOC = ∠ BOD

Therefore it is proved lines intersect each other then the vertically opposite angles are equal.

1 Thank You

Muskan Tanwar 5 years, 2 months ago (9919797)

Yes

2 Thank You

ANSWER

Name the following on the given map of French. (i) The northernmost epicenter of the main panic movement

Posted by Parmar Manali 5 years, 2 months ago (9919510)

CBSE > Class 09 > Social Science

1 answers

Gunshika Grover 5 years, 2 months ago (8720531)

Hilter rose to power. He was born in 1889 in Austria and spent his youth in poverty. In the First World War, he enrolled for the army, acted as a messenger in the front, became a corporal, and earned medals for bravery. Hitler joined a small group called the German Workers’ Party in 1919. He took over the organisation and renamed it the National Socialist German Workers’ Party, which later came to be known as the Nazi Party. In 1923, he planned to seize control of Bavaria, march to Berlin and capture power. During the Great Depression, Nazism became a mass movement. After 1929, banks collapsed, businesses shut down, workers lost their jobs and the middle classes were threatened with destitution. In such a situation, Nazi propaganda stirred hopes of a better future. Hitler was a powerful speaker and his words moved people. In his speech, he promised to build a strong nation, undo the injustice of the Versailles Treaty and restore the dignity of the German people. He also promised employment for those looking for work and a secure future for the youth. He promised to weed out all foreign influences and resist all foreign ‘conspiracies’ against Germany. Hitler started following a new style of politics and his followers held big rallies and public meetings to demonstrate support. According to the Nazi propaganda, Hitler was called a messiah, a saviour, as someone who had arrived to deliver people from their distress.

0 Thank You

ANSWER

Why do you think marga minco named the story the address

Posted by Kiran Poonia 5 years, 2 months ago (9552644)

CBSE > Class 11 > English Core

2 answers

Yogita Ingle 5 years, 2 months ago (2577571)

Margo Minco has very aptly and logically titled this short story ‘The Address’. The narrator and her mother were victims of the war. The upheaval forced them to be wanderers. They had no permanent address worth the name. All the ‘nice things’ were at No. 46, Marconi Street. They aroused nostalgic feelings of former times. But their true owner was no more in the world. The narrator resolved to forget them and also the address where they lay.

0 Thank You

R. D. 5 years, 2 months ago (9542760)

Because all things of her mother was there and she's mother told that "46 markoni street remember this address" where miss dorling lives they return our things after war .

1 Thank You

ANSWER

Hello everyone can anyone tell me how to chat on this app?

Posted by Komal Khatri 5 years, 2 months ago (9919664)

CBSE > Class 11 > Sociology

3 answers

Ruhi Singh 5 years, 2 months ago (9889019)

Hii ...

0 Thank You

Sakshi Jagtap 5 years, 2 months ago (8544477)

like this only.......

2 Thank You

Komal Khatri 5 years, 2 months ago (9919664)

I am new here

3 Thank You

ANSWER

What were the main reasons for the establishment of NITI Ayog? Explain

Posted by Gaurav Singh 5 years, 2 months ago (9454495)

CBSE > Class 12 > Economics

1 answers

Nidhi Maroria 5 years, 2 months ago (4613536)

Establish with the aim of sustainable development goals with cooperative federalism by fostering the involvement of state government of india

2 Thank You

ANSWER

NAME=MOHD FARHAN CLASS=10th B ROLL NO. = 10216

Posted by Mohd Farhan 5 years, 2 months ago (9871430)

CBSE > Class 10 > हिंदी ए

2 answers

Ayush Kumar 5 years, 2 months ago (8096029)

Prepare for your board exam

2 Thank You

Itachi Uchiha ? 5 years, 2 months ago (9336081)

Then what can we do for you ??? (sorry just joking..) .

2 Thank You

ANSWER

Q:1 Complete the sentence 1) Hunter - gatheres chose to live in caves and rock shelters because __________ 2) Grassland developed around _______ years ago

Posted by Nandika Rajput Rajput 5 years, 2 months ago (9536397)

CBSE > Class 05 > Social Science

0 answers

ANSWER

What is centripetal acceleration, derive an expression for it

Posted by Wani Iqu 5 years, 2 months ago (9918736)

CBSE > Class 11 > Physics

1 answers

Komal Khatri 5 years, 2 months ago (9919664)

Means?

0 Thank You

ANSWER

Happy Dusshera to all kripya sb apne andar k ravan ko maare na ki mare hue ko baar baar karte rahe?

Posted by ⠀ 5 years, 2 months ago (7628492)

CBSE > Class 11 > Mathematics

4 answers

Sahil Singh 5 years, 2 months ago (9869880)

Sahi baat ha bhai.......

0 Thank You

Komal Khatri 5 years, 2 months ago (9919664)

Same to you friend

0 Thank You

Har Har Mahadev 🙏 5 years, 2 months ago (5614857)

Or ye usse bhi aacha hoga ki ham apne ander ke Ravan ko jagne hi na de.

0 Thank You

Har Har Mahadev 🙏 5 years, 2 months ago (5614857)

Ha , ??

0 Thank You

ANSWER

What are preposition s

Posted by Tiya. Nerd 🤓 5 years, 2 months ago (9866654)

CBSE > Class 07 > English

0 answers

ANSWER

Write 10 uses of Manikaran geothermal power plant in Himachal Pradesh

Posted by Minal Sharma 5 years, 2 months ago (8970982)

CBSE > Class 08 > Social Science

3 answers

Christina Shaju 5 years, 2 months ago (9628889)

Can anyone tell me the answer of :- How did the indian textile industry decline in the 18th century

0 Thank You

Christina Shaju 5 years, 2 months ago (9628889)

Ibhdsrgbjokbcder

0 Thank You

Yogita Ingle 5 years, 2 months ago (2577571)

A. Solar energy is energy generated from heat of sun.

B. Biomass energy is generated from the biomass i.e. organic matter of plants and animals which in turn, contains the stored solar energy.

C. Geothermal energy is the energy generated from heat of earth.

D. Hydroelectric energy is generated using water which is passed over turbines which flow at a high speed and electricity is generated.

Manikaran (located in Himachal Pradesh) hot springs are used to generate geothermal energy because the heat of the water is used to produce electricity.

1 Thank You

ANSWER

What is dividend

Posted by Tiya. Nerd 🤓 5 years, 2 months ago (9866654)

CBSE > Class 07 > Mathematics

5 answers

Bhawna Kushwah 5 years, 2 months ago (9329151)

Wdcgj

1 Thank You

Omm Prasad Sahoo ??? 5 years, 2 months ago (9555920)

Dividend: The number or value or amount that we divide is known as a dividend. For example, if we have to distribute 10 toffies among 5 children, then we need to divide the 10 toffies by 5, which will result in 2 toffies for each child. Hence, the value 10 is the dividend here.

1 Thank You

Tiya. Nerd 🤓 5 years, 2 months ago (9866654)

Thanks

1 Thank You

Harshita Mishra 5 years, 2 months ago (3592059)

The number or value or amount that we divide is known as a dividend. For example, if we have to distribute 10 toffies among 5 children, then we need to divide the 10 toffies by 5, which will result in 2 toffies for each child. Hence, the value 10 is the dividend here.

1 Thank You

Yogita Ingle 5 years, 2 months ago (2577571)

Dividend: The number or value or amount that we divide is known as a dividend. For example, if we have to distribute 10 toffies among 5 children, then we need to divide the 10 toffies by 5, which will result in 2 toffies for each child. Hence, the value 10 is the dividend here.

2 Thank You

ANSWER

Hi.........

Posted by Shreya Waghmare 5 years, 2 months ago (9896748)

CBSE > Class 09 > Science

5 answers

Akshat Holland Minettee 5 years, 2 months ago (8406082)

0 Thank You

《Aruba》°°° 《Sayed》❤ 5 years, 2 months ago (8785827)

Hyy

1 Thank You

Chaitali .26 5 years, 2 months ago (9890853)

Hello shreya

0 Thank You

Nikhil Verma 5 years, 2 months ago (9880243)

Hii

1 Thank You

Muskan Mishra 5 years, 2 months ago (9126159)

Hiiiii

1 Thank You

ANSWER

Explain the following accounting principles/concepts : 1.Accrual Concept 2.Business Entity Concept 3.Money Measurement Concept ??...

Posted by Saloni ? 5 years, 2 months ago (9581552)

CBSE > Class 11 > Accountancy

4 answers

Prachi Manral 5 years, 2 months ago (9788815)

3.Money Measurement concept : According to this principle, only those transactions they that are measured in terms of money or can be expressed in terms of money are recorded in the books of accounts of enterprise.

1 Thank You

Prachi Manral 5 years, 2 months ago (9788815)

1.Accural concept : accrual concept applies equally to revenue and expenses. As per this assumption,all revenue and cost are recognised when they are earned or incurred. 2.Business entity concept: According to this principle, business is treated as an entity which is separated and distinct from its owner.

1 Thank You

Saloni ? 5 years, 2 months ago (9581552)

??..

0 Thank You

Sahil Singh 5 years, 2 months ago (9869880)

Ye accountancy k 1 ch m ha Phadlo......

1 Thank You

ANSWER

Give the mechanism of peroxide effect.

Posted by Saumya Joshi 5 years, 2 months ago (8792189)

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 5 years, 2 months ago (2577571)

Peroxide effect or kharasch effect or anti-markovnikoff rule is applicable when HBr reacts with unsaturated hydrocarbon in the presence of peroxide. In this reaction, the Br atom gets attached to that doubly bonded carbon atom which has more number of hydrogen atoms attached to it while H atom if HBr gets attached to the other carbon atom which has less number of hydrogen atoms.

E.g:- CH₃-CH=CH₂ + HBr(peroxide) → CH₃-CH₂-CH₂-Br

It is an example of free radical addition reaction.

1 Thank You

ANSWER

Are mid point theorem , Thales theorem and BPT same?

Posted by Ritika Talwar 5 years, 2 months ago (6780410)

CBSE > Class 10 > Mathematics

1 answers

Gautam Sinha 5 years, 2 months ago (9850460)

Thales and BPT theorem same it's divide into same ratio but mid point theorem not same .

3 Thank You

ANSWER

Why is consitution called as supreme law of the land

Posted by Sana Fatima 5 years, 2 months ago (9918103)

CBSE > Class 11 > Political Science

1 answers

Vaishnavi Gupta 5 years, 2 months ago (9920624)

It is known as the supreme law of the land because it is the only book which should and is abided both by the citizens and the government. This book can be considered as the holy book of not any religion but we the Indians. This book states all the how the people are to be represented, the duties of the government and citizens, rules and regulations to be followed etc.

1 Thank You

ANSWER

VGe all

Posted by ᵐꜞᔆᔆ᭄ Qᴜᴇᴇɴ✿࿐꧂ : ꨄ︎•, 5 years, 2 months ago (2894528)

CBSE > Class 11 > Biology

2 answers

Abhinab Sahu 5 years, 2 months ago (9439828)

VGe sona

0 Thank You

⠀ 5 years, 2 months ago (7628492)

VBe to you

0 Thank You

ANSWER

note making on we have di we have different motives for putting on perfumes we apply fragrances added to the person in a certain way by others or to feel a certain way about ourselves some authors also use perfumes to make a fashion statement in project a desired personality

Posted by Astha Panwar 5 years, 2 months ago (9919456)

CBSE > Class 11 > English Core

1 answers

Ek Jot 2 years, 6 months ago (14503484)

0 Thank You

ANSWER

How did the Indian textile industry decline in the 18th century

Posted by Christina Shaju 5 years, 2 months ago (9628889)

CBSE > Class 08 > Social Science

2 answers

Krishna Gunjan 5 years, 2 months ago (9932413)

In 18th century the competition of textile rose and many countries started inventing machine which can do work by just pressing a button. The Indians denied the use of machine and made textile by their hands, this led to collapse of Indian textile industry in 18th century

1 Thank You

Yogita Ingle 5 years, 2 months ago (2577571)

Following factors led to the decline of the textile industry during the British rule in India-
1. Low price of machine - made textiles
2. Expansion of railways
3. Imported textiles could reach the villages
4. Traditional weavers lost their village markets.
5. Due to high export tax, textiles exported to Britain lost its market

1 Thank You

ANSWER

If (-1, 2), (2, -1) and (3, 1) are any three vertices of a parallelogram, then

Posted by Aadhi Naren 5 years, 2 months ago (9089337)

CBSE > Class 10 > Mathematics

1 answers

Mukul Kumar 5 years, 2 months ago (8434980)

then what complete question plz.

0 Thank You

ANSWER

Hello sweet friends???????????

Posted by Alka Yadav 5 years, 2 months ago (9768466)

CBSE > Class 09 > English Lang & Lit. (184)

4 answers

Harmanpraat Kaur 5 years, 2 months ago (8351042)

Hlo alka yadav ji

2 Thank You

Muskan Mishra 5 years, 2 months ago (9126159)

Hey Alka

2 Thank You

Neha Jangid ??? 5 years, 2 months ago (9834482)

Hlo Alka jiiiii

1 Thank You

《Aruba》°°° 《Sayed》❤ 5 years, 2 months ago (8785827)

Hii alka....

1 Thank You

ANSWER

Habo haibar vidhi dwara ammonia ka Nirman

Posted by Shubham Gupta 5 years, 2 months ago (9919400)

UP Board > Class 12 > रसायन विज्ञान

1 answers

Vaibhavi Srivastava 5 years ago (10336498)

हेबर विधि द्वारा अमोनिया के औद्योगिक निर्माण का नामांकित चित्र सहित वर्णन कीजिए। इसके दो प्रमुख गुण एवं दो उपयोग लिखिए। इस विधि में ला-शातेलिए नियम का क्या महत्त्व है हेबर विधि का सिद्धान्त–यदि शुद्ध नाइट्रोजन और हाइड्रोजन के 1 : 3 अनुपात के मिश्रण को गर्म किया जाए तो अमोनिया बनती है। यह एक ऊष्माक्षेपी उत्क्रमणीय अभिक्रिया है और क्रिया के पश्चात् आयतन में कमी होती है, इसलिए ला-शातेलिए के नियमानुसार कम ताप और अधिक दाब पर अमोनिया अधिक उत्पन्न होगी। कम ताप पर अभिक्रिया का वेग बढ़ाने के लिए एक उत्प्रेरक प्रयोग किया जाता है। इस अभिक्रिया का उत्प्रेरक की उपस्थिति में अनुकूलतम ताप 450°-500°C तथा उच्च दाब 200 वायुमण्डल है; क्योंकि अभिक्रिया उत्क्रमणीय है, इसलिए अमोनिया को बराबर क्रिया क्षेत्र से हटाने के बाद, अमोनिया गैस अधिक बनेगी। इस अभिक्रिया में लोहे का बारीक चूर्ण (उत्प्रेरक) तथा मॉलिब्डेनम (उत्प्रेरक वर्धक) की सूक्ष्म मात्रा प्रयुक्त होती है। इसमें गैसीय मिश्रण शुद्ध होना चाहिए जिससे उत्प्रेरक विषाक्त न हो। विधि- शुद्ध N2 तथा H2 को 1 : 3 अनुपात में मिलाकर 200 वायुमण्डल दाब पर तप्त लोहे के बारीक चूर्ण (उत्प्रेरक) को, जिसमें मॉलिब्डेनम (उत्प्रेरक वर्धक) मिला होता है, 500°C ताप पर गर्म करते हैं। इस विधि में 10 – 15% अमोनिया बनती है, जिसे संघनित्र में प्रवाहित करके द्रवित कर लेते हैं। शेष गैसों को फिर से उत्प्रेरक कक्ष में प्रवाहित करते हैं जिससे N2 व H2 के संयोजन द्वारा NH3 का लगातार उत्पादन होता रहता है। रासायनिक गुण 1. क्षारीय गुण – यह क्षारीय गैस है तथा लाल लिटमस को नीला कर देती है। यह अम्लों से क्रिया करके लवण बनाती है। 2. धातु ऑक्साइडों का अपचयन – यह धातु ऑक्साइडों को अपचयित कर देती है। उपयोग 1. प्रयोगशाला में अभिकर्मक के रूप में। 2. बर्फ बनाने तथा कोल्ड स्टोरेज में प्रशीतक के रूप में; क्योंकि इसके वाष्पन की गुप्त ऊष्मा 327 कैलोरी/ग्राम (उच्च) होती है

1 Thank You

ANSWER

Who has written the national anthem , who has written the national song

Posted by Shivanand Wali 5 years, 2 months ago (9831850)

CBSE > Class 06 > Other Subjects

5 answers

Aditya Jain 5 years, 2 months ago (7601406)

Ravindra nath Tagore written the our national anthem

0 Thank You

Prithviraj Jadhav 5 years, 2 months ago (9612900)

Who is the first woman President of India???

1 Thank You

Janaki Prem 5 years, 2 months ago (9926314)

Rabindranath Tagore

1 Thank You

Lav Bal 5 years, 2 months ago (9894883)

Rabindra nath Tagore written the national anthem

1 Thank You

Yogita Ingle 5 years, 2 months ago (2577571)

The song Jana Gana Mana is the National Anthem of India which was composed by the Rabindra Nath Tagore in 1911, originally in Bengali. It was adopted by the constituent assembly on January 24, 1950 in its Hindi version.

The National song is originally a Bengali poem written by Bankim Chandra Chattopadhyay in the year 1870. The original “Vande Mataram” poem is a collection of six total stanzas.

2 Thank You

ANSWER

Cities in India suspended particulate matter Sulphur dioxide nitrogen oxide 200 80 80 in permissible limits 453 20 64 in Ludhiana 680 124 137 in Delhi 485 27 53 in Mumbai 262 45 34 in chennai .Using the information given above your own ideas in ideas from the unit environment write, a letter to the editor of Delhi chetna New Delhi expressing your concern about the increasing environmental pollution and how it has lead to health problem in this area also suggest way of dealing with the problem write a letter in not more than 120 words

Posted by Kritika Singh 5 years, 2 months ago (9898293)

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Essay on festival during covid

Posted by Amrit Gill 5 years, 2 months ago (9884564)

CBSE > Class 07 > English

1 answers

Ananya Tikait 5 years, 2 months ago (8826821)

How you can write

1 Thank You

ANSWER

Why is their a ring between wires carrying high voltage and low current

Posted by Angel Joshi 5 years, 2 months ago (9368500)

CBSE > Class 10 > Science

1 answers

Chakshu Budhiraja 5 years, 2 months ago (9422404)

I don't know the answer But I want to know about you ?

0 Thank You

ANSWER

How many generations are there and the name and features of them

Posted by Sanvi Bansal 5 years, 2 months ago (9511638)

CBSE > Class 05 > Computer

3 answers

Kaavya Pathak 5 years, 2 months ago (9822920)

5 generations

1 Thank You

Sanvi Bansal 5 years, 2 months ago (9511638)

Thanks somy babu and features

1 Thank You

Somy Babu 5 years, 2 months ago (9918586)

There are 5 generation

2 Thank You

ANSWER

Who among the following administration The Oath of a office of the Governor a chief minister be president see Chief Justice of High Court D Prime Minister

Posted by Shivanand Wali 5 years, 2 months ago (9831850)

CBSE > Class 06 > Other Subjects

0 answers

ANSWER

What is the minimum age required for the appointment

Posted by Shivanand Wali 5 years, 2 months ago (9831850)

CBSE > Class 06 > Other Subjects

3 answers

Kashish 👸 5 years, 1 month ago (9467962)

I think u want to say employement but u wrote appointment . The age is 18

0 Thank You

Vansh Raj Rana 5 years, 1 month ago (10136072)

I play among us and you play us among

0 Thank You

Yogita Ingle 5 years, 2 months ago (2577571)

Parliament of India consists of President, Lok Sabha (Lower House) and Rajya Sabha (Upper House.) Lok Sabha is referred to as the House of People whereas Rajya Sabha is referred to as the Council of States.

The minimum age required to become a member of Rajya Sabha is 30 years.

Rajya Sabha

The total membership of the Rajya Sabha is 250.
It is commonly known as the representative House of States but the states are not represented equally in the Rajya Sabha.
Seats in the Rajya Sabha are allocated and accommodated to different States on the basis of population.
Out of the total members of the House, twelve members are nominated by the President from the persons having special knowledge or practical experience in the fields of literature, science, art and social service.

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ANSWER