A polygon inscribed in a circle, luckily, has a derived formula already. It is:
A = (nr²/2)[sin (360/n)]
where n is the number of sides of the polygon and r is the radius of the circle. For this problem, n = 100 and r = 1. Substituting this to the equation,
A = (100(1)²/2)[sin (360/100)]
A = 3.14 square units
Thus, the 100-gon has an area of 3.14 square units.
Answer:

Step-by-step explanation:

F(x)=2x+3-(x+10)
0=2x+3-x-10
0=x-7
-x=-7
x=7
Answer:
The answer is A. Took the test.
Step-by-step explanation: