Question

Cos a = 12 by 15 then find sin a and tana

Answer 1

Explanation:

cos A=12/15

cos A= P/B(Base/Hypotenuse)

"Base=12

"Hypotenuse=15

Use Pythagoras Theoram

Hy²=Per²+Base²

15²=Per²+12²

225=Per²+144

225-144=Perpendicular ²

81=Perpendicular ²

(9)²=(P)²

Perpendicular=9

SinA=P/H= 9/15

TanA=P/B= 9/12

Answer 2

Answer:

sin a =9/15

tan a=9/12...