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1 answer:
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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.
Answer:
Step-by-step explanation:
In the question, we're given . Therefore, the measure of these two angles must be equal.
To find the value of , set these two angles equal to each other:
Add 26 and subtract from both sides:
Divide both sides by 3:
Since was labelled as
, substitute
to find its measure:
You can also substitute into the label of angle D as angle A is congruent to angle D for easier calculations (
).