Answer:
The area of the heptagon is approximatelly 702 square units.
Explanation:
The area of a regular heptagon is given by the following formula:
a = 3.634*l²
Where "a" is the area of the heptagon and "l" is the length of the side of the heptagon. Therefore to solve this problem we must use the formula above with the given side length. So we have:
a = 3.634*(13.9)²
a = 3.634*193.21
a = 702.12514 square units
The area of the heptagon is approximatelly 702 square units.