An angle is where two lines intersect at a point. It is measured by the distance between the two lines in degrees. Boom. Did it without math-ey words. i'm da best
The equation for the area of a circle is:

. Insert 9 as your radius (r) into the equation and solve:
\pi 9^2 = 254.469
5k²-8k-45k+72 = 5k²-53k+72
Answer: 5k² - 53k + 72
I believe there was a typo in the question. The equation states 65, buy the chart states 55. This is not linear at all.
Formula for Diameter: <span>2 x radius
Formula for Radius: R= C/2(pi)</span>
R= 176/2(22/7)
R=28.01
2(28.01)=56.02
Answer= 56.02