An isosceles triangle is a triangle that has two equal sides. The two angels opposite the equal sides are equal angels.
pollygram is not a word but a pollygon is and that needs 4 or more sides
an improper trapazoid does
the only triangle that has 3 equal sides and 3 equal angles is the EQUILATERAL TRIANGLE.
A group of angles is called a polygram. A group of angels is referred to as a "Host of Angels".
An equilateral triangle.
a regular pentagon
A regular pentagon.
It is an equilateral triangle
A square or a rectangle both have 2 pairs of equal sides and have right angles