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Maru [420]
3 years ago
5

PLS HELP I WILL POSSIBLY MARK YOU BRAINLESS and rate u 5 stars!!​

Mathematics
1 answer:
arlik [135]3 years ago
6 0
Perimeter is the length of the border. The best way to find it here is to split the figure up into a semicircle and a trapezoid.

The radius of the semicircle is 9 in. so its perimeter is 2pir/2 = 9pi in.

The perimeter of the trapezoid can be found by adding the lengths of all sides. The bottom side is 2 times the radius of the semicircle, 18 inches. Add this to the other lengths: 5 in, 12 in, 5 in.

The total perimeter is then 40 + 9pi.
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