Asked by Joana

An 18 meter ladder leaning against a building makes a 70 angle with ground. How far up the building does the ladder touch?

Answers

Answered by Ana
The ladder would end up making a right triangle with the ground and the wall, so that makes it possible to use the sine law because you know the angle across from the ladder.
18/sin 90 = x/sin 70
x = 18*sin 90
= 16.91m
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