Posted by **jake** on Wednesday, February 20, 2013 at 5:02pm.

1. A 16-foot ladder on ground level is leaning against a house. If the base of the ladder is placed 5.0 feet from the house, what is the angle formed at the top of the ladder?

A. 24°

B. 18°

C. 72°

D. 20°

please help I don't know how to do this

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