Question

A 7-foot ladder is leaned against a building in such a way that the bottom of the ladder is 4 feet from the base of the wall. Find the angle formed between the ladder and the ground.

Answer 1

X = 4
r = 7 = hyp.

cos A = X/r = 4/7 = 0.57143
A = 55.15o

Answer 2

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Answer 3

6.7