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What is the circumference of the half circle?

What is the circumference of the half circle?-example-1

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Answer:

4π cm

Explanation:

GIVEN :-

  • Diameter of half circle = 8cm

TO FIND :-

  • Circumference of half circle

FACTS TO KNOW BEFORE SOLVING :-

Circumference of a circle with radius 'r' is =
2\pi r

⇒ Circumference of half-circle with radius 'r' =
(2\pi r)/(2) = \pi r

SOLUTION :-

Radius =
(Diameter)/(2) = (8)/(2) = 4

So , Circumference of half-circle =
\pi * 4 = 4\pi cm

User Cavan
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