I need help on how to get the answer to this question.

dunno work it try c

Step-by-step explanation:

The surface are for cube is 156.06 sq.cm

Step-by-step explanation:

Given:

The figure is Cube with side length =5.1 cm

To Find:

Surface area of cube

Solution:

Now the surface are means addition of all faces areas

Hence there are 6 surface with are all sides are equal ,

Let l= side length , then

Surface area =6L^2

=6*(5.1)^2

=6*5.1*5.1

=156.06 Sq cm is required surface are for cube

if you was gonna solve for a, a is a   < -12