Question

The surface area of a jumbo size Rubik’s cube is 294in2. Find the lateral edge

Answer 1

Answer:

The lateral edge is $7\ in$

Step-by-step explanation:

we know that

The surface area of a cube is equal to

$SA=6b^{2}$

where

b is the length side of the cube

we have

$SA=294\ in^{2}$

substitute in the formula and solve for b

$294=6b^{2}$

$b^{2}=294/6$

$b^{2}=49$

$b=7\ in$