No, because a basketball doesn't have any flat surfaces. It's completely round.
The right answer is the constant of proportionality
If two variables are related and this relationship is that there is a<em> constant ratio</em> between them, then we are talking about proportionality. There are two types of proportionality.
1) Direct Proportionality:
In a mathematical language this is given by this equation:

where
is in fact this constant of proportionality. If
<em>increases,</em>
also <em>increases</em> at the same rate. On the other hand, If
<em> decreases, </em>
also <em>decreases</em> at the same rate.
2) Inverse Proportionality:
In a mathematical language this is given by this equation:

where
is also called the constant of proportionality. If
<em>increases,</em>
<em>decreases</em> at the same rate. On the other hand, If
<em>decreases,</em>
<em>increases</em> at the same rate.
-30 -29 -28 is the correct answer
78 = 2 x 3 x 13
1 x 78
2 x 39 = 78
3 x 26=78
6 x 13 = 78
larger number is 13