SOLUTION: a circle has a center at (8,2). The point (3,7)is in the circle. What is the area of the circle to the nearest tenth of a square unit?

Question 990516: a circle has a center at (8,2). The point (3,7)is in the circle. What is the area of the circle to the nearest tenth of a square unit?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The radius, , of a circle is the distance between any point on the circumference, and the center of the circle.
In this case, the point (3,7) must be at a distance from point (8,2), and
.
The area of a circle with radius is ,
so the area of the circle in the problem is
(rounded to the nearest tenth of a square unit).
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