Answer:
486
Step-by-step explanation:
Hello!
To find the surface area of a cube we use the equation

S is the surface area
a is the side length
Put what we know into the equation

Solve
S = 6 * 81
S = 486
Hope this Helps!
Answer:
It is Rational.
Step-by-step explanation:
Answer:
291.666666667
Step-by-step explanation:
Rounds to 291.7
The answer is 35 i think but i am not sure