Question

if sin A = 3/5 then cos A
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Answer 1

Answer:

cosA is 4/5

hope helps..

Answer 2

Answer:

4/5

Step-by-step explanation:

sin A = Perpendicular/Hypotenuse

Hypotenuse = 5

Perpendicular = 3

Base = ?

Pythagoreas Theorem ,

25 = 9 + ($Base^{2}$)

16 = ($Base^{2}$)

Base = 4

Cos A = Base/Hypotenuse

= 4/5