Question

What is the best approximation for the perimeter of a semicircle with a diameter of 64 meters?

Use 3.14 to approximate pi.

100.48 m

164.48 m

200.96 m

264.96 m

Answer 1

Answer: 164.48

Explanation:

and don't forget we all have different answers :D

Answer 2

By definition, the perimeter of a semicircle is given by:

`P = ( \pi ) * (r) + d`
Where,
d: diameter of the semicircle
r: radius of the semicircle.
The radius of the semicircle is given by:

`r = d / 2`
Where,
d: diameter of the semicircle
Substituting values:

`r = 64/2 r = 32 m`
Then, the perimeter is:

`P = (3.14) * (32) + 64 P = <span> 164.48</span> m`
Answer:
The perimeter of the semicurcle is given by:
P = 164.48 m