Step-by-step explanation:
sum of 5 times a number and -2, + 8n
becomes:
5n + (-2) + 8n, or
5n -2 +8n, or. 13n - 2
Can't give you an answer without a picture of the figure.
<u>Given</u>:
Given that the side of the regular polygon is 16 feet.
We need to determine the area of the polygon.
<u>Area of the polygon:</u>
The area of the polygon can be determined using the formula,

where n is the number of sides,
s is the side length.
Substituting n = 3 and s = 16, we get;

Simplifying, we get;


Dividing, we get;

Rounding off to the nearest tenth, we have;

Thus, the area of the regular polygon is 110.9 square units.
1/2 inch EMT.........................