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What is the circumference of the semicircle?
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5 votes
What is the circumference of the semicircle?

What is the circumference of the semicircle?-example-1
User Ddagsan
by
4.4k points

2 Answers

2 votes

we know the circumference of circle which

2pir

then circumference of semi circle is

2pir×1/2

where 2 and 2 get cancel

and we are left with pir

so.. pi4

=12.56

User Olivier Liechti
by
4.1k points
2 votes

Answer:


12.56m

4th answer is correct.

Explanation:


(180)/(360) * 2\pi \: r \\ (1)/(2) * 2 * \pi * 4 \\ = 12.56m

User Carlana
by
4.5k points
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