What is the total surface area of a cuboid whose length, breadth and height are 7 cm, 5 cm and 9 cm, respectively?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 286 cm2
Given that
length, breadth, and height are 7 cm, 5 cm, and 9 cm of a cuboid
Formula used
The total surface area of a cuboid = 2(l*b + b*h + h*l)
Calculation
= 2 * (7 * 5 +5 * 9 + 9 * 7) = 2*( 35 + 45 + 63) = 143 * 2 = 286 cm2