Estimate the surface area of a cube with side length 9.9 in
a)100 in2
b)400 in2
c)600 in2
d)1000 in2

Option C is correct

600

Step-by-step explanation:

Surface area of cube(S) is given by:

           ....[1]

where, a is the side length of a cube.

As per the statement:

A cube with side length 9.9 in.

⇒a = 9.9 in.

Substitute in [1] we have;

Therefore, the estimate the surface area of a cube is, 600

which expression represents the approximate length of bc?

step-by-step explanation: