1. To solve this problem, you must apply the formula for calculate the area of the trapezoid, which is:
A=(B+b)h/2
A is the area of the trapezoid (A=69.6 in²). (B+b) is the sum of the bases of the trapezoid. h is the height of the trapezoid (h=8.7 in).
2. When you clear the sum of the bases (B+b), you have:
A=(B+b)h/2 2A=<span>(B+b)h </span><span> (B+b)=2A/h </span> (B+b)=2(69.6 in²)/(8.7 in) (B+b)=16 in
3. The problem says that <span>the sum of its legs is equal to the sum of its bases, therefore, the perimeter is: </span> Sum of the legs=Sum of the bases (B+b)=16 in
The number you need is 16 all you have to do is work out the problem and try to understand it they are trying to confuse you don't need an equation. Hope this help! Have a Great day mate !!