A wooden plank is leaning against a wall

timer Asked: Oct 29th, 2017
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Question description

1.  A wooden plank is leaning against a wall. The bottom of the plank is 3 feet from the wall. Answer each of the following questions, and show all of your work.

a)  Find AC, the approximate length of the plank. Round to the nearest tenth of a foot.

b)  Find BC, the height off the ground where board touches the wall. Round to the nearest foot.

angle c is 49 degrees

angle B is 90 degrees

Tutor Answer

School: Duke University

BA is one leg of the right triangle ABC, and its length is known (3 ft). The kno...

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