You have to do exactly what it says calculate the length of that part of the shape.
I am not too sure whether there were options, but one way to approach this is to fill it with "multiplication" and "addition" - the distributive property combines addition and multiplication to make multiplying whole numbers simpler.
The gain is that you don't have to make one difficult multiplication, but a couple of simpler ones and then you can add them up.
A triangle does have 3 sides, so this statement is a true statement/a fact
Answer:
81 lots of 5,000 square feet fits in the property.
Step-by-step explanation:
<em><u>The first step </u></em>is calculate the square feet of the minimum area:

<em><u>Second,</u></em> from the ten acres we subtract the 26,000 feets of roads:

<em><u>Third,</u></em> we divide the lot area over the available square feet

81 lots of 5,000 square feet fits in the property.