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3 years ago

This is a picture of a cube and the net for the cube. What is the surface area of the cube?

Mathematics

1 answer:

mina [271]3 years ago

4 0

Answer:

$486\ in^2$

Step-by-step explanation:

we know that

The surface area of the cube is equal to the area of its six square faces

$SA=6b^2$

where

b is the length side of the cube

we have

$b=9\ in$

substitute

$SA=6(9)^2=486\ in^2$

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