Question

We have 4 congruent equilateral triangles. What more do we need to make a pyramid?

• A. An equilateral triangle
• B. A square with same side length as of the triangles
• C. 2 equilateral triangles with side length same as the triangles
• D. 2 squares with side length same as triangle

Answer 1

The correct option is B

A square with same side length as of the triangles

A pyramid is a solid which has one flat surface as its base and triangular faces that meet at the apex whose number is given by the number of edges in its base. A square with same side length as of the triangles will help us construct a pyramid.