Study the right square pyramid and its net shown here.

Then complete the statements below to find the surface area of the pyramid.

A square pyramid with 7 centimeters base length and height. The height of the triangle is 10 centimeters. The base is labeled A and the sides are labeled B. The right side has the square labeled A with four triangles on top and right side of the square. The triangles are labeled B. The height of the triangle is 10 centimeters and the base length of the square and triangle is 7 centimeters.
The area of Face A is ____ square centimeters.
The area of one Face B
triangle is _____ square centimeters.
There are _____copies of Face B
triangles in the pyramid.
So the total area of all the Face B
triangles is _____ square centimeters.

1 answer

The area of Face A is 49 square centimeters.
The area of one Face B triangle is 17.5 square centimeters.
There are 4 copies of Face B triangles in the pyramid.
So the total area of all the Face B triangles is 70 square centimeters.