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Answer:
arc = 5π units
Explanation:
The circumference (C) of a circle is calculated as
C = 2πr ( r is the radius )
Here we have a semicircle with d = 10, so r = 5, then
arc = × 2π × 5 = 5π units
31.40
3.14 x 10
= 31.40
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× 2π × 5 = 5π units