Question

.A 15 m ladder rests against a wall at an angle of 60° with the ground. How far is the

foot of the ladde from the wall?

Answer 1

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Answer:

7.5 m

Explanation:

The cosine relation applies.

Cos = Adjacent/Hypotenuse

cos(60°) = (distance to wall)/(15 m)

distance to wall = (15 m)cos(60°) = (15 m)(1/2) = 7.5 m

The foot of the ladder is 7.5 m from the wall.