Question 15
Mensuration of SolidsCalculate the total surface area of a cupboard which measures 12cm by 10cm by 8cm
- A.1920cm2
- B.592cm2
- C.296cm2
- D.148cm2
Show the answer and explanation
Answer: B (592cm2)
Explanation
A cuboid has six faces in three equal pairs: 2(12×10 + 12×8 + 10×8) = 2 × 296 = 592 cm2.