Dr. Black is standing 20 feet from a streetlamp. The lamp is making his shadow 5 feet long. He estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 30. To the nearest foot, the streetlamp is about _____.

Question

mathstudent55 · Answer

This is the given information.
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mathstudent55 · Answer

Are you looking for the height of the lamp?

anonymous · Answer

yes

mathstudent55 · Answer

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anonymous · Answer

Is this a related rates calculus or trig of right triangles? Just so I can help...

mathstudent55 · Answer

The angle at the right is also 30 degrees.
Now we can come up with a simpler figure.

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You are looking for h.

mathstudent55 · Answer

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