Shapes that have four sides are known as quadrilaterals.
A Pyramid is a Geometric Solid whose sides are Triangles, that meet at its Apex. Pyramids can have Square bases (and thus 4 sides), or Triangular bases (and 3 sides).
There are a few simple shapes with equal sides. The basic shapes are a square, octagon, and an equilateral triangle,
Triangles. The base is clearly a square.
the answer is 8