Three lines of symmetry on an equilateral triangle. Right-angled triangles follow the same rules as other triangles. It's not the right angle that matters but whether the triangle is scalene or ...

A regular polygon is a shape in which all the sides are equal and all the angles are equal.

Symmetry: A property where a shape is balanced and identical on both sides of a central line or point, often used in visual processing to identify objects. Generalized Cone: A three-dimensional ...