Asked by josh

How long is a ladder whose base is 3 ft from a wall and makes an 80° angle with the ground?

Question 15 options:

10 ft


12 ft


14 ft


17 ft

Answers

Answered by Reiny
Basic trig,
if the length of the ladder is h ft

3/h = cos 80°
h = 3/cos80° = appr 17 ft
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