what is the measure of P?
(As a decimal rounded to the nearest hundreth)
sin( angle ) = length of side opposite / length of hypotenuse
sin P = 15 / 17
Take the inverse sin of both sides of the equation.
P = arcsin( 15/17 )
Plug arcsin(15/17) into a calculator to get...
P ≈ 61.93°
+121 
