Question

What is the surface area, measured in square centimeters, of the shapebelow? Do not include units in your answer.

Answer 1

SOLUTION

The figure in the question is a cuboid with

length = 7 cm, width = 3cm and height = 4cm

Surface area of a cuboid is given as

$\begin{gathered} S=2(lw+lh+wh) \\ S=2((7\times3)+(7\times4)+(3\times4))_ \\ S=2(21+28+12) \\ S=2(61) \\ S=2\times61 \\ S=122cm^2 \end{gathered}$

Hence the answer is 122 square-centimeters