Question

We want to make a paper pyramid with base a square of side 10 centimetres and height 12 centimetres. What should be the lengths of the sides of the triangles?

Answer 1

Side of the square base, b = 10 cm

Height of the square pyramid, h = 12 cm

Base of the triangle = Side of the square = 10 cm

We know that, where l is the slant height of the square pyramid.

⇒ l

Now, , where e is the lateral edge of the square pyramid.

Thus, the lengths of sides of the triangles are 10 cm,