The radius of a circle is 7 cm.the circle is divided into two equal parts.what is the perimeter of each semicircle part
1 answer:
Answer:
≈ 22 cm
Step-by-step explanation:
the circumference (C) of a circle ( the perimeter ) is calculated as
C = 2πr ( r is the radius )
= 2π × 7 = 14π
since divided into 2 equal parts then
C = 14π ÷ 2 = 7π ≈ 22 cm ( to the nearest whole number )
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