Mathematics, 18.03.2021 03:40 sheccidmariscal9428
7. A carpenter needs to measure the length of the beams that will support a roof. The building is
50 feet wide. The roof will rise at an angle of 30° from the top of the walls. The peak of the roof
is 14.43 feet above the top of the walls. The side adjacent to the 30° angle is half the width of
the building. How long is each supporting beam, b, to the nearest thousandth? Add 2 feet to the
beam length so that the roof can extend 2 feet past the walls. What is the cosine of 30°?
Answers: 2
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