The radius is half of the diameter of a circle.
The area of any circle is (pi) x (radius)2 .The area of half the circle is just half of that number.
Semicircle is HALF of a circle!
75 Percent.
A semi-circle, half a circle, by definition is 180 degrees, half of a rotation. A whole circle has a whole rotation, which is 360 degrees.
The prefix semi means half. Therefore a semicircle is half a circle. Other examples semidetached, semitrailer, semifinal
The prefix "semi-" means half or partially. When added to a base word, it implies that something is only partway there or halfway done. For example, "semi-transparent" means partially see-through, and "semi-circle" refers to half of a circle.
semi
another name for a half circle is semi-circle
Coca cola
Half a circle is called a semi-circle. Sometimes it is called a half-moon.
a hemisphere
John Stith Pemberton
a half circle? a half? semi circle? half sphere?
Half a circle is called a "semicircle" in geometry.
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The sixth of a circle is called a sextant. The prefix: sex, meaning six. Another prefix for six is hexa.