Question

This problem is so hard!!!!!

Answer 1

3/7

Explanation:

Sin (R) = opposite ÷ hypotenuse,

Find the opposite by using pythagorean theorem.

(AY)^2 + (2√10)^2 = 7^2

(AY)^2 + 40 = 49

(AY)^2 = 9

AY = 3

Sin(R) = 3/7

Answer 2

Ay = 3
The final answer Sin(R) = 3/7