kirra2
kirra2
11-04-2018
Mathematics
contestada
Find perimeter of the semicircles
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dgcutie03
dgcutie03
11-04-2018
The circumference (perimeter of the semicircle) is 51.4
20 × 3.14 = 62.8
62.8 ÷ 2(because its a semicircle)=31.4
And you have to add the 20 because 31.4 is one the round part of the semi circle, not including the line at the bottom.
So the answer is 51.4
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