Question

In right angle triangle ABC, 8 cm, 15 cm and 17 cm are the lengths of AB, BC and CA
respectively. Then, find sin A, cos A and tan A.
​

Answer 1

Answer:

hope this will help you

Explanation:

AB = 8 cm, BC = 15 cm, AC = 17 cm

According to the diagram,

AB = Adjacent Side, BC = Opposite Side, AC = Hypotenuse.

Now we need to find Sin A, Cos A, and Tan A.

Let us calculate Sin A first,

Sin A = Opposite / Hypotenuse

=> Sin A = BC / AC

=> Sin A = 15 / 17

Cos A = Adjacent / Hypotenuse

=> Cos A = AB / AC

=> Cos A = 8 / 17

Tan A = Opposite / Adjacent

=> Tan A = BC / AB

=> Tan A = 15 / 8

Answer 2

Explanation:

According to question,

Angle B =90

0

for angleA

base(B)=8cm

perpendicular(P)=15cm

hypotensue(H)= 17cm

sinA= H

P

= 17

15

cosA= H

B

= 17

8

tanA= B

P

= 8

15