Question

a polygon with three sides of equal length is called an
if two figures are the same shape and the same size, then the figures are
a line segment that goes through the center point of a circle and divides the circle into two congruent halves is called a
a polygon that has congruent sides (equilateral) and congruent angles (equiangular) is said to be a polygon.

Explanation:

• A three-sided polygon with equal sides is an equilateral triangle.
• Figures with same shape and size are congruent.
• A circle's center-passing segment dividing it into two congruent halves is a diameter.
• A polygon with congruent sides and angles is regular.

Answer:

equilateral triangle, congruent, diameter, regular