How do you find the area $(x+3)^2 + (y-2)^2 = 25$ ?

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Answer 1 · 2016-03-05T00:08:28

Use the equation of a circle to discover the radius is 5 and then use the equation of the area of a circle to get the area of $25pi$

The equation of a circle is:

$(x-a)^2+(y-b)^2=r^2$

From this we can see that $r^2=25$ . The formula for the area of a circle is

$A=pi r^2$

Substituting for $r^2$ the area is

$A=25pi$

How do you find the area (x+3)^2 + (y-2)^2 = 25(x+3)^2 + (y-2)^2 = 25?