Show your complete solutions by creating a diagram that represents the situation and coming up with a solution for each. 1. To measure the height of the cloud cover at an airport, a worker shines a spotlight upward at an angle 75° from the horizontal. An observer 600 m away measures the angle of elevation to the spot of light to be 45°. Find the height h of the cloud cover.

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Show your complete solutions by creating a diagram that represents the situation and coming up with a solution for each.


1. To measure the height of the cloud cover at an airport, a worker shines a spotlight upward at an angle 75° from the horizontal. An observer 600 m away measures the angle of elevation to the spot of light to be 45°. Find the height h of the cloud cover.

 

2. A 600-ft guy wire is attached to the top of a communications tower. If the wire makes an angle of 65° with the
ground, how tall is the communications tower?

 

3. To measure the height of an inaccessible cliff on the opposite side of a river, a surveyor makes the measurements shown in the figure at the right. Find the height of the cliff.

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