Question

. You lean a 16 foot ladder against the wall. If the base is 4 feet from the wall, what angle does

the ladder make with the ground? Round your answer to the nearest tenth.

Answer 1

Check the picture below.

`cos(\theta )=\cfrac{\stackrel{adjacent}{4}}{\underset{hypotenuse}{16}}\implies cos(\theta )=\cfrac{1}{4}\implies \theta =cos^(-1)\left( \cfrac{1}{4} \right)\implies \theta \approx 75.5^o`

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