Circle Equation
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
100

(x-2)2 + (y-5)2 =92, the center point is..

(2,5)

100
The Diameter of this circle is 5
What is 2.5
100
The radius of this is 5
What is 10
100
The diameter for this circle is 10
What is 31.4
100
The radius of this circle is 2
What is 12.56
200

(x-3)2 +(y-4)2 =252  the center point of this equation is..

(3,4)

200
The diameter is 12
What is 6
200
The radius of this circle is 2.5
What is 5
200
The diameter for this circle is 13
What is 40.82
200
The radius of this circle is 3
What is 28.26
300

The center is (13,-13) and the radius is 4

(x − 13)2 + (y + 13)2 = 16

300
The diameter of this circle is 27
What is 13.5
300
The circumference of this circle is 15.7
What is 5
300
The diameter of this circle is 25
What is 78.5
300
The radius of this circle is 21
What is 1384.74
400

What is the radius (x-2)2+(y+2)2 =36

r=6

400
The diameter of this circle is 437
What is 218.5?
400
The circumference of this circle is 18.84
What is 6
400
The radius for this circle is 45
What is 282.6
400
The radius of this circle is 15
What is 706.5
500

Circle A has an area of 25pi U2.

Circle B has an area of 100pi U2.

What is the scale factor

The SF is 2

500
The diameter of this circle is 0.325
What is 0.1625
500
The diameter of this circle is 194.68
What is 62
500
The radius for this circle is 25
What is 157
500
The radius of this circle is 20
What is 1256
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