the perimeter of a semi circle plate is 86.4 cm calculate radius and area
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1
perimeter=86.4
pie r = 86.4
r=86.4/pie
=86.4×7/22
=432/10×7/11
=24.49 cm
therefore
area of semicircle=pie r^2/2
=22/7×24.49×2/2
=76.96 square cm
pie r = 86.4
r=86.4/pie
=86.4×7/22
=432/10×7/11
=24.49 cm
therefore
area of semicircle=pie r^2/2
=22/7×24.49×2/2
=76.96 square cm
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