Evaulate a+4 when a=7
2 answers:
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Answer:
The area of the regular nonagon is 7921.8 square inches.
Step-by-step explanation:
Geometrically speaking, the area of a regular polygon is determined by following area formula:
(1)
Where:
- Area of the regular polygon, in square inches.
- Perimeter, in inches.
- Apothem, in inches.
If we know that and
, then the area of the regular nonagon is:
The area of the regular nonagon is 7921.8 square inches.