Question

The length, breadth, and height of a cuboid are 15 m, 6 m, and 5 m, respectively. Then the lateral surface area of the cuboid is:

• A. \( 200 \, \text{m}^2 \)
• B. \( 210 \, \text{m}^2 \)
• C. \( 250 \, \text{m}^2 \)
• D. \( 220 \, \text{m}^2 \)

Hint:

The lateral surface area of a cuboid is given by: \[ \text{LSA} = 2h(l + b) \] where \( l, b, h \) are the length, breadth, and height.

Answer 1

The Correct Option is B

The lateral surface area (LSA) of a cuboid is given by:
\[ \text{LSA} = 2h(l + b) \] Substituting values:
\[ \text{LSA} = 2(5)(15 + 6) \] \[ = 2(5)(21) = 210 \text{ m}^2 \]