Question

in triangle ABC, A=90° , AB=20, AC=21 then find sin B, cos C and tan B ​

Answer 1

Answer:

Hey mate

Here your answer

By use Pythagoras theorem

H =Hypotenuse

B= Base

P= perpendicular

H^2 = B^2 + P^2

H^2= 20^2 + 21^2

H^2 = 400+ 441

${h } = \sqrt{841}$

H = 29

Sin B = 21/29

Cos C = 21/29

Tan B = 21/20