Standard Mathematics Primary 4 Geometry

A cuboid has length 6 cm, breadth 4 cm and height 2 cm. Its net is shown. What is the total surface area of the cuboid?

A 48 cm²
B 80 cm²
C 88 cm²
D 96 cm²
Show Worked Solution

Worked Solution

Step 1: Identify the three pairs of faces on a cuboid. • Top and bottom: length × breadth = 6 × 4 = 24 cm² each → 2 × 24 = 48 cm² • Front and back: length × height = 6 × 2 = 12 cm² each → 2 × 12 = 24 cm² • Left and right: breadth × height = 4 × 2 = 8 cm² each → 2 × 8 = 16 cm² Step 2: Add all six faces: 48 + 24 + 16 = 88 cm² Answer: Total surface area = 88 cm² Answer: 88 cm²

Correct answer: 88 cm²

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