Question

Ladder
Building
Ground
A ladder that is 16 meters long reaches the top of a building that is 5 meters
high.
What is the sine ratio for the angle the ladder makes with the ground?

Answer 1

sin(theta) = O/H = 5/16 (this us the ratio)
If we go further for the problem:
sin(theta) = 5/16 becomes sin-1 (5/16) = 18.2°

Good luck!