Surface Area of Pyramids — Quiz

Question 6 • Grade 7 Mathematics

Garry is studying a square pyramid and wants to draw a net of the figure to help determine its surface area. Which net represents a square pyramid?

Answer

Image with description A net. Two triangles are surrounded by 3 squares, one attached to each side. One square is shared by both triangles.

Image with description A net. The center of the net is a triangle. Each side of the triangle shares a side with a square.

Image with description A net. The center of the net is a square. A triangle is attached to the left and right sides of the square. A square is attached to the opposite side of each triangle such that one vertex of each square touches a vertex of the center square.

Image with description A net. The center of the net is a square. Each side of the square shares a side with a triangle. The 4 triangles appear to be congruent.

Explanation

A square pyramid has one square base and four triangular side faces. In choice D, a triangle is attached to each of the square’s four sides, so folding the triangles up forms the pyramid. The other descriptions do not show the required square base with four triangular faces.

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