Answer:
The surface area of the cube is
Step-by-step explanation:
step 1
Find the length side of the cube
we know that
The diagonal of a cube is equal to
where
b is the length side of the cube
In this problem we have
substitute and solve for b
step 2
Find the surface area of the cube
The surface area of the cube is equal to
substitute the value of b
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210
29*7 = 203, 203 is the closest number to 210!