The area of the cardboard needed to make a closed box of size 10 cm × 15 cm × 8 cm will be:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 700 cm2
The total area of a cuboid = 2[10 × 15 + 8 × 15 + 8 × 10]
⇒ 2[150 + 120 + 80]
⇒ 2[350]
⇒ 700 cm2