Advanced Mathematics Primary 4 Geometry

Hakim is making a 3D model for his school art project. He draws a net that has exactly 2 square faces and 4 rectangular faces (the squares and rectangles are NOT all the same size). When he folds the net, which solid does he get?

A Cuboid
B Cube
C Square pyramid
D Triangular prism
Show Worked Solution

Worked Solution

Step 1: Count the faces in the net. 2 square faces + 4 rectangular faces = 6 faces total. Step 2: Recall face counts for each solid. • Cube: 6 faces, ALL squares (identical) • Cuboid: 6 faces, rectangles in opposite pairs (can include 2 squares) • Square pyramid: 5 faces (1 square + 4 triangles) • Triangular prism: 5 faces (2 triangles + 3 rectangles) Step 3: Match. Only the cuboid has exactly 6 faces arranged as 2 squares + 4 rectangles. The net folds into a Cuboid.

Correct answer: Cuboid

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