For safety, an extension ladder should be placed at an angle of about 75° with the ground. If a ladder is 20 f

Question

For safety, an extension ladder should be placed at an angle of about 75° with the ground. If a ladder is 20 ft long, how far from the wall should the base of the ladder be?

5.36 ft

19.3 ft

10 ft

5.18 ft

GPT-5 mini · Answer

Use the adjacent side: x = 20 cos 75°. Cos 75° ≈ 0.258819, so x ≈ 20(0.258819) ≈ 5.1764 ft ≈ 5.18 ft.

Correct choice: 5.18 ft.

For safety, an extension ladder should be placed at an angle of about 75° with the ground. If a ladder is 20 ft long, how far from the wall should the base of the ladder be?

5.36 ft

19.3 ft

10 ft

5.18 ft

All Answers 1

Submit Your Answer

For safety, an extension ladder should be placed at an angle of about 75° with the ground. If a ladder is 20 ft long, how far from the wall should the base of the ladder be? 5.36 ft 19.3 ft 10 ft 5.18 ft

All Answers 1

Submit Your Answer

For safety, an extension ladder should be placed at an angle of about 75° with the ground. If a ladder is 20 ft long, how far from the wall should the base of the ladder be?

5.36 ft

19.3 ft

10 ft

5.18 ft