A 3m ladder is leaning against a vertical wall. If it reaches 2.3m up the wall, what angle does it make with the ground?

Answer 1

As ladder is 3 m long, so it will be hypotenuse (H) value

and height of wall is 2.3 m, so it will be perpendicular (P)

using Sinθ = P/H = 2.3/3

θ = 49.46 degree

Answer 2

Draw and label a diagram

sin θ = 2.3 / 3