Question

Find the total surface area of a cuboid whose length, breadth and height are 5 cm, 4 cm and 3 cm respectively.

• A. $86c{m}^2$
• B. $94c{m}^2$
• C. $51c{m}^2$
• D. $64c{m}^2$

Answer 1

The correct option is B $94c{m}^2$

Given:
Length of the cuboid, l = 5 cm
Breadth of the cuboid, b = 4 cm
Height of the cuboid, h = 3 cm

Total surface area of the cuboid
$=2(lb+bh+hl)$
$=2(5\times 4+4\times 3+3\times 5)$
$=2(20+12+15)$
$=2\left(47\right)$
$=94c{m}^2$
$\therefore$ Total surface area of the cuboid is $94c{m}^2$.