A solid cuboid has a length of 7 cm, a width of 5 cm, and a height of 4 cm. Calculate its total surface area.
A
280 cm\(^2\)
B
166 cm\(^2\)
C
140 cm\(^2\)
D
83 cm\(^2\)
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Total = 2(LB + BH + LH)
Surface area
= 2(7 x 5 + 5 x 4 + 7 x 4)
= 2(35 + 20 + 28)
= 2(83)
= 166cm\(^2\)
Source: Myschool Past Questions Archive (Record #58304)