Find the total surface area of a cuboid whose length is 20 cm, width is 15 cm, and height is 8 cm.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 1160 cm2
Given:
l = 20 cm, b = 15 cm and h = 8 cm
Formula used:
Total surface area of cuboid = 2(lb + bh + hl) ---- (1)
Where, l = length, b = breadth and h = height
Calculations:
Using equation (1), we get
⇒ Total surface area = 2(20 × 15 + 15 × 8 + 8 × 20)
⇒ 2(300 + 120 + 160)
⇒ 2(580) = 1160