Isoceles Triangle
The answer depends on what shape the question is about.
If all side lengths are changed so the new shape is proportionately equal, the angles don't change. But if it's not proportion. equal, then the angles will be different
regular pentagon maybe maybe not
An EQUILATERAL TRIANGLE
it has to have equal angles, not side lengths. otherwise it would just be two of the same shape
Rectangle.
Yes, all regular shapes have equal angles and equal sides. A regular shape, by definition, is a polygon where all sides are of the same length and all interior angles are equal. For example, in a regular triangle (equilateral), all three angles are 60 degrees, and in a regular square, all four angles are 90 degrees. Thus, regular shapes exhibit symmetry in both their side lengths and angles.
If a shape has equal angles and side lengths then it is known as a regular polygon
An equilateral triangle has 3 equal interior angles that add up to 180 degrees
square
the shape is a regular shape if it has all the same angles and side lengths.
There are exactly 3 equal angles (of 60o) and three equal sides in any equilateral triangle.