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dezoksy [38]
4 years ago
15

If a 20-foot ladder makes a 65° angle with the ground, how many feet up a wall will it reach? Round your answer to the nearest t

enth.
Mathematics
1 answer:
zysi [14]4 years ago
7 0

We have an angle, a hypotenuse - the ladder length - and we're looking for the opposite side......the sine seems the way to go, here.....

sin 65 = opp / 20   multiply both sides by 20

20 sin 65 = opp = about 18.13 ft up the wall

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