Question

Need help solving for Y

Answer 1

The y which equals 17 will round up to 20

Answer 2

Here, sin y = P /H
sin y = 9 / 17
sin y = 0.52
y = sin⁻¹(0.52)

For exact value, you need to round off 0.52 to 0.50
y = sin⁻¹( 1/2 )
y = 30            [ 'cause, sin 30 = 12 ]

Your final answer is 30 degrees.

Hope this helps!