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2 years ago

Work out the angle of x

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

3 0

Answer:

Cos60=1/2=0.5

cos60=4/x

0.5=4/x

0.5x=4

0.5x/0.5=4/0.5

x=8

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The bird is 17 feet above the tree.

<u>Explanation:</u>

We need to think of this in terms of right triangles. If Wendy is 60 feet from a tree, the base of the right triangle is 60 feet. The height of the tree is the height of the right triangle. The angle of elevation is the one from the ground at her feet to the top of the tree and then to the bird. Let's start with the top of the tree first.

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