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Ans. Given : in triangle ABC , right angle at B , AB=24cm and BC=7cm To find: sinA and cos A Now by Pythagoras AC² =AB²+BC² AC² =(24)²+(7)² AC = √576+49 AC =√625 AC =√(25)² AC =25cm We have AC =25 Now SinA=perpendicular/ hypothesis SinA = BC/AC therefore, SinA= 7/25 Now Similarly, CosA =base/ hypothesis CosA = AB/AC CosA = 24/25 Hence, sinA =7/25 CosA =24/25

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ABC is a triangle in which DE||BC such that AD/DB=3/2. Prove that triangle DEF is similar to triangle CBF nd also find the ratio ar(DEF):ar(DEC), where F is the point of intersection of DC and BE

Posted by Vaibhavi Prabhu 2 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Write essay on bharatsyah vaigyanik pragati

Posted by Yogita Chaudhari 2 years, 5 months ago

CBSE > Class 10 > संस्कृत (शेमुषी)

2 answers

Harsh Sahu 2 years, 3 months ago

जल निमयात्

0Thank You

Kiran Choudhary 2 years, 4 months ago

Question answer lesson 3

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ANSWER

Write essay on bharatsyah vaigyanikh pragati

Posted by Yogita Chaudhari 2 years, 5 months ago

CBSE > Class 10 > संस्कृत (शेमुषी)

0 answers

ANSWER

Who was Max?

Posted by Arya Pathak 2 years, 5 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Aijaz Ansari 2 years, 5 months ago

Max was the second spy agent who had holding the gun and camed into fawler's room with the master key.

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ANSWER

Give reason Veins have valves

Posted by Shubham Kumar 2 years, 5 months ago

CBSE > Class 10 > Science

4 answers

Mohini Goswami 2 years, 5 months ago

Veins have valve to prevent the backflow of blood

1Thank You

Himanshu Mittal 2 years, 5 months ago

Veins have valves to prevent this backflow of blood.

1Thank You

Divya Rajput 2 years, 5 months ago

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0Thank You

Shubham Kumar 2 years, 5 months ago

Veins was stored deoxygenated blood veins have valves because the deoxygenated blood was back to the lungs

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ANSWER

இந்தியாவின் முதல் பிரதமர் யார்

Posted by Hedesh Yogavel 2 years, 5 months ago

CBSE > Class 10 > Regional Language

4 answers

Devi Devendran 2 years, 1 month ago

Jawaharlal Nehru

1Thank You

Sk Shobana Sabari Nathan 2 years, 3 months ago

Rajandraprasath

2Thank You

S.Sitharth S.Sitharth 2 years, 4 months ago

Jawaharlal Nehru

2Thank You

Hedesh Yogavel 2 years, 5 months ago

Jawaharlal Nehru

9Thank You

ANSWER

Write the steps to create a calculated field in a quary

Posted by Jaikishan Shukla 2 years, 5 months ago

CBSE > Class 10 > Information Technology (402)

0 answers

ANSWER

Give a brief life sketch of Anne Frank

Posted by Tamish Barot 2 years, 5 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Hedesh Yogavel 2 years, 5 months ago

Anne was born on June 12 1929 in Frankfurt Germany. She was four years old when her father moved to Holland to find a better place for the family to live. She was very intelligent and perceptive and wanted to become a writer. She loved Peter and had strong feelings for him.

1Thank You

ANSWER

6x-7x+3

Posted by Daljeet Singh 2 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Account Deleted 2 years, 5 months ago

6x²-7x-3 6x²-9x+2x-3 3x(2x-3)+1(2x-3) (3x+1)(2x-3) {x=-1/3} {x=3/2}

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ANSWER

π is value of 3.14 but why?How?

Posted by Bhavya Diwan 2 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Bhavya Diwan 2 years, 5 months ago

Okk I know but how ? Kase aya or 22/7 hein kyu lete hai

0Thank You

Anshu Raj Gupta 2 years, 5 months ago

Yes because 22/7=3.14

1Thank You

Aditi K 2 years, 5 months ago

22/7=3.14

0Thank You

ANSWER

Module 5 CA 42 editing ommision

Posted by Bhawna Sharma 2 years, 5 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

& Points P.Q, R and S divide the line segment joining the points A (1,2) and B (6,7) in 5 equal parts. Find the coordinates of the points P. Q and R

Posted by Piyushi Jha 2 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If zeroes of x2-px+6 are in ratio 2/3 find p

Posted by Mehak Cheema 2 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

In how many ways you can create a template in open office

Posted by Fbrbr Ccjjck 2 years, 5 months ago

CBSE > Class 10 > Information Technology (402)

0 answers

ANSWER

In how many ways you can create a template in open office writer mention their steps

Posted by Fbrbr Ccjjck 2 years, 5 months ago

CBSE > Class 10 > Information Technology (402)

0 answers

ANSWER

What is corresponding angles?

Posted by Gauri Kumari 2 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Ladli Kasaudhan 2 years, 5 months ago

Corresponding means same place

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ANSWER

The distance between the points (0, 0) and (a - b, a + b) is

Posted by Saurav 10 2 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Nakshatra Gupta 2 years, 5 months ago

0Thank You

ANSWER

Who was Fowler? According to your opinion why was he accomponing Ausable

Posted by Janavi Sahare 2 years, 5 months ago

CBSE > Class 10 > English Language and Literature

2 answers

Ishika Nawbag 2 years, 5 months ago

I bored writing

0Thank You

Dheeraj Yadav 2 years, 5 months ago

Chapter 1

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ANSWER

The distance between points (1,2) and (5,p) is 5 units. Find the value of p

Posted by Mohd Amzad 2 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

enumerate how the transportation works as a lifeline of economy

Posted by Tina Aby 2 years, 5 months ago

CBSE > Class 10 > Social Science

0 answers

ANSWER

class 10 write swavrit topic banking seva bharti board

Posted by Ashish Negi 2 years, 5 months ago

CBSE > Class 10 > हिंदी ए

0 answers

ANSWER

If n=2^3×3^4×5^4×7, then the number of consecutive zeroes in n, where n is natural no.?

Posted by Nancy . 2 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

पहाड़ी क्षेत्रों में मृदा अपरदन की रोकथाम के लिए क्या कदम उठाने चाहिए

Posted by Rukamani Rukamani 2 years, 4 months ago

CBSE > Class 10 > सामाजिक विज्ञान

1 answers

Nandani Kumari 2 years, 3 months ago

Videshi nivesh ka sanrakshan kerna chahiye,sakh ki suvidhao ka sithilata kerna chahiye

0Thank You

ANSWER

How many teeth does a child hate at six and ten year

Posted by Ansh Awal 2 years, 5 months ago

CBSE > Class 10 > Home Science

3 answers

Varsha Negi 2 years, 1 month ago

2 year

0Thank You

Shehshe Dubey 2 years, 2 months ago

3Thank You

Biraj Riya 2 years, 3 months ago

2Thank You

ANSWER

Write and explain the mechanism of photosynthesis in plant

Posted by Dev Bainsla 2 years, 5 months ago

CBSE > Class 10 > Science

2 answers

Study Dil Sa 1 Chauhan 2 years, 5 months ago

Photosynthesis is process through which the plant make their own food. 1) Raw Material:-a) carbon dioxide b)water c) sunlight 2)It occur in stomata of the leaves. 3)In this process, plant takes water from soil.Co2 from Air and sunlight from sun .After this long process Plants make their own food.

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Himanshu Mittal 2 years, 5 months ago

During photosynthesis, plants use sunlight to convert carbon dioxide and water into carbohydrates and oxygen

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ANSWER

Why the tertiary sector is growing give an example

Posted by Krishna Maranur ✍️. Anil Maranur ✍️ 2 years, 5 months ago

CBSE > Class 10 > Social Science

1 answers

Vaidehee Chaudhary 2 years, 5 months ago

1.Development of agriculture and industry led to the development of service 2.courts ,transportation,loans,hospitals the are required this is considered as basic servics. 3.as a certain section demanding tourism,private schools and hospitals,shopping. 4. As tge technology becime so important and essential for our life

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Table of Tignomatry

Posted by Aksha Saifi 2 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Samrat Srivastava 2 years, 5 months ago

Degrees (°) Sine (sin) Cosine (cos) Tangent (tan) Cosecant (csc) Secant (sec) Cotangent (cot) 0° 0 1 0 undefined 1 undefined 30° 1/2 √3/2 √3/3 2√3/3 2 √3 45° √2/2 √2/2 1 √2 √2 1 60° √3/2 1/2 √3 2/√3 2 1/√3 90° 1 0 undefined 1 undefined 0

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C + o2= c02 I am right

Posted by Aryan Dogra 2 years, 5 months ago

CBSE > Class 10 > Science