A semicircle is the figure contained by the diameter and the circumference cut off by it. And the center of the semicircle is the same as that of the circle.
Father of geometry
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Cross Reference
2 sources
"Give him threepence, since he must make a gain out of what he learns."
Shocking"An obtuse angle is an angle greater than a right angle."
Strange & Unusual"To construct a regular pentagon in a given circle."
Strange & Unusual"A ratio is a sort of relation in respect of size between two magnitudes of the same kind."
Strange & Unusual"A straight line is a line which lies evenly with the points on itself."
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