What is the best approximation for the perimeter of a semicircle with a diameter of 64 meters?
Use 3.14 to approximate pi.

100.48m

164.48m

200.96m

264.96m

Correct option A) 100.48m .

Step-by-step explanation:

Here we have , Diameter of a semicircle is 64 meters . We need to find the perimeter of semicircle . Let's find out:

We know that perimeter of a circle = , where r is radius of circle .

⇒

⇒ , where D is diameter of a circle .

Since, a semicircle is half of a circle so Perimeter of semicircle will also be half of circle i.e.

⇒

⇒

Diameter = 64 meters

⇒

⇒

⇒

Therefore , Perimeter of semicircle is 100.48 m . Correct option A) 100.48m .

a

step-by-step explanation:

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