Mathematics
Mathematics, 05.11.2019 23:31, 24jameb

Arain gutter is to be constructed of aluminum sheets 12 inches wide. after marking off a length of 4 inches from each edge, this length is bent up at an angle θ. the area a of the opening may be expressed as the function: a(θ) = 16 sin θ • (cos θ + 1). if θ = 60°, what is the area of the opening?

1.2 in2

7.9 in2

16.3 in2

20.8 in2

answer
Answers: 1

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