Question:
The total surface area of a cuboid of length l = 5 cm, width b = 2 cm and height h = 3 cm is:
The total surface area of a cuboid of length l = 5 cm, width b = 2 cm and height h = 3 cm is:
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A cuboid has 6 faces; the formula sums the areas of all 3 pairs of identical faces.
Updated On: Jun 26, 2026
- 50 sq. cm
- 42 sq. cm
- 62 sq. cm
- 70 sq. cm
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Surface area of 3D shapes.
Step 2: Analysis
Formula: $TSA = 2(lb + bh + hl)$.
Step 3: Calculation
$TSA = 2(5 \times 2 + 2 \times 3 + 3 \times 5)$.
$TSA = 2(10 + 6 + 15) = 2(31) = 62$.
Step 4: Conclusion
The total surface area is 62 sq. cm. Final Answer: (C)
Surface area of 3D shapes.
Step 2: Analysis
Formula: $TSA = 2(lb + bh + hl)$.
Step 3: Calculation
$TSA = 2(5 \times 2 + 2 \times 3 + 3 \times 5)$.
$TSA = 2(10 + 6 + 15) = 2(31) = 62$.
Step 4: Conclusion
The total surface area is 62 sq. cm. Final Answer: (C)
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