Question

A 25-foot long ladder is propped against a wall at an angle of 18° with the wall. How high up the wall does the ladder reach? Round the answer to the nearest tenth of a foot. 13.8 ft 23.8 ft 26.3 ft 80.9 ft

Answer 1

B) 23.8 ft

Explanation:

Answer 2

B) 23,.8 feet

Explanation:

It forms a right triangle.

We use the trigonometric ratio of cos to find the answer.

cos = adjacent /Hypotenuse

Here hypotenuse is the length of the ladder and adjacent side represent the ladder toughs the wall from the ground.

cos 18 = adjacent / 25

adjacent = 25*cos18

adjacent = 23.8 feet

Answer: B) 23,.8 feet

Hope this will helpful.

Thank you.