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Not necessarily. If it is a semicircle - a circle bounded by an arc and the diameter of the original circle, it has two vertices - at the end of the diameter.
However, a half circle need not have a side that is a straight line. It can be like the yin-yang symbol (see link). The half circle here has no vertex.
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Earn +20 ptsQ: Does a half circle have vertices?
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Continue Learning about Geometry
This shape has no vertices it is round?
The shape that has no vertices and is round is a circle. The circle is the only shape that does not have vertices.
How many vertices are in a circle?
Zero vertices
How many vertices in circle?
None but it's possible to construct shapes within a circle that have vertices.
What do you call a polygon inside a circle with its vertices on the circle?
Inscribed
It has no sides and no vertices?
Circle or sphere.
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