there are two angles
16 vertices.16 vertices.16 vertices.16 vertices.
A pentacontagon has 50 vertices (not vertices's!).
5 vertices
8 vertices
2
Semicircle has four syllables.
180º degrees.
1
there are two angles
One. The line of symmetry for a 180 degree arc (a semicircle) is the line that bisects the arc.
No, a semicircle is not a quadrilateral
Semicircle
16 vertices.16 vertices.16 vertices.16 vertices.
A pentacontagon has 50 vertices (not vertices's!).
The possessive form is semicircle's.
Calculating the radius of a semicircle depends on what information about the semicircle is given.