Semi means half. So there are two semicircles in a circle.
3355
Two of them
Just the one and it is its radius when at right angles to the semi-circle's centre
semi-circle
None.
If the central point of the straight line is placed exactly on the middle, and such central point has an axis, it will have a rotational symmetry.
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.
a semi-circle only has one line of symmetry
a semi-circle only has one line of symmetry
Circle. That is the opposite of semi circle.
A semi-circle
180
Two.
3355