Assertion: heptagon's area | /r/HasProperty | calculated
Facets:
Source sentences:
text: The area of a heptagon can be calculated using the following formula: if you know the perimeter and the apothem.
text: The Area of the septagon is calculated by first finding the area of one of the Isosceles Triangles created by one side of the septagon, and two lines constructed from the center point to each vertex.