Question

geo.1.7 additional practice problems (digital)
assigned by ramon matamoros on september 18, 2025
1 practice 1
which of these statements is true?
a all triangles are regular polygons.
b pentagons cannot be regular polygons.
c hexagons cannot be regular polygons.
d all equilateral triangles are regular polygons.

Explanation:

A regular polygon has all sides and all angles equal. An equilateral triangle has all three sides equal and all three angles equal (each 60 - degrees), so it is a regular polygon. Not all triangles are regular (e.g., scalene and isosceles triangles aren't). Pentagons and hexagons can be regular if their sides and angles are equal.

Answer:

D. All equilateral triangles are regular polygons.