Question

❤Hloo❤

If sin theta= 4/5 what is the value of cos theta?

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Answer 1

Hey mate ^_^

Answer: cos theta is 3/5

Explanation: as Sin theta is 4/5

Sin theta is perpendicular/Hypotenuse

And Cos theta is Base/ Hypotenuse

We have Perpendicular = 4 units

Hypotenuse = 5 units

So using Pythagoras theorem

H²= P²+B²

5²=4²+ B²

25= 16+B²

25-16=B²

9=B²

√9= 3

B = 3

Cos theta = B/P

Cos theta = 3/5

Hope is helped