Hello! I am just wondering the steps to solve this equation?

Given sin α = n/m where n = 12 inches and m = 16 inches, solve for α to the nearest degree.

So it would be Sin(a) = 12/16, however, I'm unsure on how to solve for the degree a. Any help is appreciated!

2 answers

there is no direct calculation solution (it's an infinite series)

use a calculator ... sin^-1 or arcsin

or a table

12/16 = 3/4 = .75 ... remember, sine is positive in Quad I and II
Got it! Thank you so much for your help!