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In right triangle ABC with right angle at C, find sin A, cos A and tan A, if side a = 8, side b = 15 and side c = 17. sin A=cos A=tan A=

User ATechGuy
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1 Answer

24 votes
24 votes

In right triangle ABC with right angle at C, find sin A, cos A and tan A, if side a = 8, side b = 15 and side c = 17.



sin A=



cos A=



tan A=​

see the attached figure to better understand the problem

step 1

Find sin(A)

sin(A)=BC/AB ------> opposite side divided by the hypotenuse

substitute given values

sin(A)=8/17

step 2

Find cos(A)

cos(A)=AC/AB -----> adjacent side divided by the hypotenuse

substitute

cos(A)=15/17

step 3

Find tan(A)

tan(A)=BC/AC ---> opposite side divided by the adjacent side

tan(A)=8/15

In right triangle ABC with right angle at C, find sin A, cos A and tan A, if side-example-1
User Mohammad Efazati
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