Question

what is the term for a closed shape with straight sides?
a. polygon
b. arc
c. circle
d. semi - circle

Explanation:

A polygon is a closed - two - dimensional shape with straight sides. An arc is a part of the circumference of a circle (not a closed shape with straight sides). A circle is a closed shape but has a curved side. A semi - circle is also a curved shape (half of a circle).

Answer:

A. Polygon