Answer:
C = 75.36
A = 452.16
Step-by-step explanation:
Find the radius r by finding the distance between (12,-1) and (0,-1) using the distance formula.
[tex]d = \sqrt{(12-0)^2 + (-1--1)^2} =\sqrt{(12)^2 + (0^2} =\sqrt{144+0} =\sqrt{144}=12[/tex]
The radius is 12.
So the circumference of the circle is [tex]C = 2\pi r = 2\pi 12 = 24\pi = 75.36[/tex]
So the area of the circle is [tex]A = \pi r^2\\A = \pi 12^2\\A = 144\pi\\A = 452.16[/tex]
