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Triangle ABC is an equilateral triangle of side 2a units. Find each of its altitudes

Posted by Anjali Kumari Saha 5 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Ranvijay Kumar 5 years, 3 months ago

Mast questions Anjali

Kanak Chauhan 5 years, 3 months ago

Altitude be √3a

Gaurav Seth 5 years, 3 months ago

Answer:

Each altitude of the equilateral triangle is equal to

Thus,

To find:

Each of its altitudes = ?

Solution:

Given : ABC is an equilateral triangle of side 2a.

In equilateral triangle, △ADB = △ADC

& ∠ADB = ∠ADC (Both 90 degree as AD ⊥ BC)

Thus, △ ADB ≅ △ ADC (By R. H. S. Congruency)

As per CPCT i.e. they are corresponding parts of congruent triangle,

BD = DC

Using Pythagoras theorem,

Hence,

Thus, the altitudes of the given equilateral triangle is equal to

ANSWER

Tumhe kehena tha ki uska answer kya hai

Posted by Lipi Nag 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Shubham Rai 5 years, 3 months ago

kis ka ?

ANSWER

What is isopentane

Posted by Ranvijay Kumar 5 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Ranvijay Kumar 5 years, 3 months ago

Thanks

Anjali Kumari Saha 5 years, 3 months ago

Isopentane, also called methylbutane or 2-methylbutane, is a branched-chain saturated hydrocarbon with five carbon atoms, with formula C ₅H ₁₂ or CH ₂. Isopentane is an extremely volatile and extremely flammable liquid at room temperature and pressure. It is also the least dense liquid at standard conditions.

ANSWER

Write the name and structure of an alcohol with three carbon atom in it molecule

Posted by Lipi Nag 5 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Anjali Kumari Saha 5 years, 3 months ago

Propanol(C3H7OH)

Ranvijay Kumar 5 years, 3 months ago

See ncert book class 10 chemistry in carbon it's compound

ANSWER

What is isomear in carbon it's compound class 10

Posted by Ranvijay Kumar 5 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Which term of ap : 3,8,13,18,...is18

Posted by Anjishth Bharti 5 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

Md Kamran 5 years, 3 months ago

Given a=3,d=8-3=5,an=18 An=a+(n-1)×d 18=3+(n-1)×5 18-3/5=n-1 3=n-1 N=3+1=4 Ans:4th term of ap is 18

Kanak Chauhan 5 years, 3 months ago

4th term of AP

Piyush Kumar 5 years, 3 months ago

4 th

Anjali Kumari Saha 5 years, 3 months ago

The given sequence is 3, 8, 13, 18, ....78. 'a' = 3, 'd' = 5, last term = 78, 'n' = ? tn=a+(n−1)d⟹78=3+(n−1)5⟹78=3+5n−5⟹78=5n−2⟹5n=80orn=16. The 16th term is 78.

ANSWER

What can be done to make trade between countries more fair Class 10 , economics chapter 4

Posted by Bhumi Agarwal 5 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Ashutosh Pandey 5 years, 3 months ago

The following steps can be taken to make international trade fair:

Interests of not only developed countries, but the developing ones should also be considered.
Rules and regulations should be uniform and organizations like WTO should be democratic.
International trade should be liberalized by all countries.
Labor laws should be implemented properly.
Small producers should be supported till they become strong enough to compete the foreign trade.

ANSWER

Who had overthrown bao dai regime

Posted by Soahum Trivedi 5 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Gaurav Seth 5 years, 3 months ago

Answer: Ngo Dien Diem
Explanation
A coup led by Ngo Dien Diem had overthrown the Bao Dai regime in Vietnam becoz he wanted to gained power over Vietnamese and to control Vietnam.

Note: This chapter has been deleted by CBSE . This chapter will not come in any exams.

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1 2 ekad biopest samikaran gyat Kijiye Jiska 0 3 aur 4 Hain

Posted by Sunita Devi 5 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Ek Dui Ghat samikaran gyat karo Jiska 0 ank 3 aur 4 Hain

Posted by Sunita Devi 5 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Nitin Kumar 5 years, 3 months ago

x=3 , x=4 (x-3) (x-4) (x)^2 -7x +12 =0

ANSWER

Coss 3O +SIN60 1+SIN30 +coss60

Posted by Abhi Y 5 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Abhi Y 5 years, 2 months ago

Elimination method fraction equation

Piyush Kumar 5 years, 3 months ago

5root 3/2

Arnav Kedia 5 years, 3 months ago

5root3 by 2

ANSWER

hai ka pad parichay

Posted by Krazy Girl 5 years, 3 months ago

CBSE > Class 10 > हिंदी ए

2 answers

Good Day 5 years, 2 months ago

पदों का व्याकरणिक परिचय ही पद परिचय कहलाता है । जैसे : राम = एकवचन , पुल्लिंग , कर्ता कारक इत्यादि।

Ashish Dhingra 5 years, 3 months ago

Gannd

ANSWER

find the sum of all multiples of 9 lying between 300 and 700

Posted by Arnav Kedia 5 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 3 months ago

The multiples of 9 lying between 300 and 700 are 306, 315,………, 693.

This is an AP with a = 306, d = 9 and l = 693.

Suppose these are n terms in the AP. Then,

ANSWER

A for

Posted by Kunal Sonker 5 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Malaika Sharma 5 years, 3 months ago

Pls don't take board exams lightly.Be serious.

Piyush Kumar 5 years, 3 months ago

Apple

Ranvijay Kumar 5 years, 3 months ago

Apppppplllllleeeeee

Krazy Girl 5 years, 3 months ago

Apple

Kunal Sonker 5 years, 3 months ago

??????????

ANSWER

How many theories are there in real number chapter

Posted by Basamma.S. Naganagoudra Naganagoudra 5 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Nalshatra Singh Rajawat 5 years, 3 months ago

Bro its in book read it?

ANSWER

Define ohm's law?

Posted by Naina Choudhary. 5 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Tamanna Rathee 5 years, 3 months ago

Potential difference =current*resistance V=IR

Simrat Kaur 5 years, 3 months ago

It states that current flowing through the conductor is directly proportional to the potential difference across the ends of the conductor when physical conditions like temperature , pressure etc remains same. V=IR

Himanshu Singh 5 years, 3 months ago

According to Ohms ,At constant temperature the electric current is directly proportional to the potential difference.

ANSWER

Types of polynomial explain with examples? Also define it ?

Posted by Naina Choudhary. 5 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 3 months ago

Types Of Polynomials

Polynomials can be classified based on:
a) Number of terms
b) Degree of the polynomial.

Types of polynomials based on the number of terms

a) Monomial – A polynomial with just one term. Example: 2x, 6x², 9xy

b) Binomial – A polynomial with two terms. Example: 4x²+x, 5x+4

a) Trinomial – A polynomial with three terms. Example: x²+3x+4

Types of Polynomials based on Degree

Linear Polynomial

A polynomial whose degree is one is called a linear polynomial.
For example, 2x+1 is a linear polynomial.

Quadratic Polynomial

A polynomial of degree two is called a quadratic polynomial

Cubic Polynomial

A polynomial of degree three is called a cubic polynomial.
For example, 2x³+5x²+9x+15 is a cubic polynomial.

3Thank You

ANSWER

Define algebra?

Posted by Naina Choudhary. 5 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Mannat Kumar 5 years, 3 months ago

Polynomial

ANSWER

What are the advantages of parallel combination?

Posted by Naina Choudhary. 5 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Harsh Janghu 5 years, 2 months ago

1.Voltage across each connecting electrical device is same. 2. Device takes current as per resistance. 3. If any device stops working,no effect on others. 4. Seperate key / switches can be applied across each device. 5. Total resistance less.....flowing of current high.

Himanshu Singh 5 years, 3 months ago

Each resistance get maximum amount of potential difference and . If one applicane is unable to work then the rest will work as normal...

ANSWER

Difference btw resistence & resistors?

Posted by Naina Choudhary. 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 3 months ago

Resistance is the property of a conductor, which determines the quantity of current that passes through it when a potential difference is applied across it.

A resistor is a electrical componet with a predetermined electrical resistance, like 1 ohm, 10 ohms 100 ohms 10000 ohms etc.

Depending on how much current you want to pass through a circuit, you would design the circuit with the required resistors.

When it comes actual circuit designing, dealing with components or physical board designing, these two words become interchangeable.For example, if we say "a resistor of 22 ohms" or we say "a resistance of 22 ohms", both are accpetable.

ANSWER

From the list of the following Na, Mg, Al, Si predict 2M 1) The most electropositive element. 2) The most electronegative element. 3) The element which acts as a metalloid. 4) The element which is tetravalent in its compounds.

Posted by Chaitanya Godse 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 3 months ago

ANSWER

Na is the most electropositive element because as we move left to right in a period electropositivity decreases.

ANSWER

From the list of the following Na, Mg, Al, Si predict

Posted by Chaitanya Godse 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Kajal Prajapati 5 years, 3 months ago

Na-sodium, Mg-magnesium, Al- aluminium, si -silicon

ANSWER

What is the value of the focal length of a plane mirror?

Posted by Aaradhya Kumari 5 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Preeti 5 years, 3 months ago

Infinity

Utkarsh Tiwari 5 years, 3 months ago

infinite

ANSWER

there is one mistake in every line in the following paragraph. the maximum number of people errs (a) when it comes to obeying traffic signals. traffic (B)and the crawl during Rush Hour has make this category (C) top of the list of cases that had to be book under the motor (d)vehicles act.the number of offenses are gone up (E) drastically in the last few years and the primary cases is (F) a step rises in vehicular population.

Posted by Krazy Girl 5 years, 3 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Show that there exists no rational number whose square is 5

Posted by Sona Budakoti 5 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 3 months ago

Given,

Prove that there is no rational number whose square is

Let's assume that , where and and are co-prime.

Then we have,

So,

⇒

This implies that is even.

Then,

So,

⇒

Thus,

⇒

Then,

∴

which contradicts and being co-prime.

Therefore, is irrational.

ANSWER

You are Rahul saini living in Mumbai. As a concened citizen of india ,write a letter to the editor of a diary, in about 100-150 words ,highlights the benefits of the "Right To Education Act"passed by parliament recently, and why it should be the duty of every citizen to strengthen the hands of the government.

Posted by Krazy Girl 2 years, 9 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Krazy Girl 3 years, 10 months ago

Please answer me

29Thank You

ANSWER

Chapter 9 class 10 CBSE schools

Posted by हंस राज जी हंस राज जी 5 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What is bajra

Posted by Sanjog Kumar 5 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Gaurav Seth 5 years, 3 months ago

Pearl Millet

Pearl Millet (Bajra)

Hindi Name: Bajra.

Bajra is a cereal, used a lot in rural India, it has a high fiber content. The most common millet is pearl millet i.e bajra, which is an important crop in India.