First the circle diameter must be given. for example, for a semi circle of diameter 8 centimeters:
Note point: There are 360 degrees in a circle, so a quarter of a circle has 90 degrees no matter what size the circle is. Half a circle has 180 degrees.
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Semi means half. So there are two semicircles in a circle.
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Two of them
Just the one and it is its radius when at right angles to the semi-circle's centre
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It is half of a circle; the circle's radius (and that of the semicircle) is 10 cm.
39.27 square cm
Semi means half. So there are two semicircles in a circle.
A semi-circle is a two dimensional shape.
A semi-circle is a 180 degree half circle. A semi-circle does not have any corners. A circle does not have corners either. There are points of beginning and end in a semi-circle. In a circle the point of beginning is the same as the ending point.
The radius is 5.00 cm.
1/2*3.14*42 =25.12 sq.cm if the radius is 4 cm
a semi-circle only has one line of symmetry
a semi-circle only has one line of symmetry
a semi - circle has zero parallel lines
The perimeter is pi*r + 2r = 92.6 cm