The diameter of a semicircle is 6 yards. What is the semicircle's perimeter?

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lissethernandez lissethernandez

02-04-2018
Mathematics

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The diameter of a semicircle is 6 yards. What is the semicircle's perimeter?

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jcherry99 jcherry99 · Answer 1 · 2018-04-02T23:45:07+02:00

First get the semiperimeter.
Perimeter of the figure = 1/2 Circumference + the diameter.
pi = 3.14
d = 6 yds.

Circumference of the circle of a full circle = pi * d
Circumference full circle = 3.14 * 6
Circumerence full circle = 18.84 yards.

The semi circumference = 1/2 the Circumference.
The semi circumference = 1/2 18.84
The semi circumference = 9.42 yards.

That's not the complete answer.
You must add the diameter to this.

Perimeter = Semi circumference + d
Perimeter = 9.42 + 6
Perimeter = 15.42 meters