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Points $A(-1, -2)$ and $B(3, 2)$ are the endpoints of a diameter of a circle graphed in a coordinate plane. How many square units are in the area of the circle? Express your answer in terms of $\pi$.

User Ebrown
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1 Answer

6 votes

Answer:

8π units²

Explanation:

center=((-1+3)/2,(-2+2)/2)=(1,0)


radius~r=√((3-1)^2+(2-0)^2) =√(4+4) =√(8) \\area~of~circle=\pi r^2=\pi * (√(8) )^2=8\pi ~square~units.

User Paulkayuk
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