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What is the approximate circumference of a semicircle with a radius of 12 centimeters? 18.8 centimeters 37.7 centimeters 75.4 centimeters 150.7 centimeters

What is the approximate circumference of a semicircle with a radius of 12 centimeters? 18.8 centimeters 37.7 centimeters 75.4 centimeters 150.7 centimeters
asked 153k views
4 votes
What is the approximate circumference of a semicircle with a radius of 12 centimeters?

18.8 centimeters

37.7 centimeters

75.4 centimeters

150.7 centimeters

asked
User JJ Pell
by
8.3k points

2 Answers

3 votes
you do Pi×Radius^2
so 24×Pi=75.4
then 75.4÷2=37.7
answered
User Gie
by
8.3k points
2 votes
Circumference of circle is 2*pi*radius
so 2*3.1416*12 = 75.4 cm
circumference of semicircle would be (1/2) (75.4) = 37.7 cm
answer is 37.7 cm
answered
User Nagarajan S R
by
9.1k points
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