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AOD is a diameter of circle O. The coordinates of points A and D are (-11,-5)and (-3,-5)Find the area of circle O.

a. 9 pi
b. 16 pi
c. 25 pi
d. 64 pi
e. 116 pi

please answer and explain

2 answers

just figure the distance between the points. That is the length of the diameter. Half of that is the radius.

Now figure the area of the circle.

16 pi

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