Yes.
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None A semicircle is the shape of a protractor (or half a pizza). It has one straight side and one longer curved edge.
A semicircle
A semicircle is one shape fitting this description.
To find the perimeter of the curved section of the semi-circle: Perimeter of semicircle = Pi x radius If you also need to the find the perimeter of the straight part of the semicircle (the diameter), it is simply double the radius.
A figure that has a curved face or curved edge.