Question

What is the total area of the two shaded faces of the cuboid below? Give your answer in cm².​

Answer 1

126cm^2

_______

There are two faces of the cuboid to find an area for.

A1 = 7x9 = 63 [first obvious shaded area]

A2 = 7x9 = 63 {7 & 9 perpendicular to back face} [back face]

A1+A2 = Total area for shaded faces

63+63 OR 63x2

= 126.