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Orlov [11]
2 years ago
6

A staircase has an angle of elevation of 28° anı

Mathematics
1 answer:
AveGali [126]2 years ago
5 0

Hi there!

We can use right-triangle trigonometry to solve.

We are given the HYPOTENUSE and ADJACENT sides, so we must use cosine in this instance.

cosθ = Adjacent/Hypotenuse

We can plug in what is given:

cos(28) = A/17

Solve for 'A':

17cos(28) = <u>15.01 ft</u>

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