Circle Terms
Circumference and Area
Angles
Segments
Equations of a circle
100
The distance from the center of a circle to the outside, also half of the diameter
What is radius
100

The area of a circle with a radius of 5

What is 78.54

100

The formula to find an angle inside the circle.

What is big arc + little arc /2

100

The formula for two secant lines.

What is whole * part = whole * part

100

The equation of a circle.

What is (x-h)2+(y-k)2=r2.

200
The longest chord in a circle
What is the Diameter
200

The circumference of a circle with a diameter of 10

What is 31.42

200

The measure of arc JK if angle JPK is 83o.

What is 83o.

200

The length of DE if GE is 8.74

What is 8.74

200

The equation of a circle with a center of (4, -2) and a radius of 7

What is (x-4)2+(y+2)2=49

300
A line through the circle.
What is a chord?
300

The length of an arc in a circle with radius of 9 and angle of 42o.

What is 6.6

300

The angle GAC if arc AF is 72o arc BD is 25o, and FD is a diameter.

What is 138.5o

300

The length of BX if DX is 6, AX is 12 and CX is 4.

What is 8

300

The center and radius for a circle with an equation of (x+2)2+(y+10)2=81

What is (-2,-10) and 9

400
The total amount of space inside of a circle
What is the area?
400

The area of a sector in a circle with radius of 3 and angle of 197o.

What is 15.47

400

Angle MQP if arc MP is 111o and arc NO is 84o.

What is 97.5

400

The length of BX if CX is 4 and AX is 9

What is 6

400

The equation of a circle with a center of (0,-2) and radius of 3.8

What is x2+(y+2)2=14.44

500
3.14 or 22/7
What is pi?
500

The area of a sector with radius of 48 and angle of 2o.

What is 40.21

500

The measure of angle C if arc BD is 32o and arc AF is 72o.

What is 20

500

The length of DX if BX is 2, AX is 10 and CX is 3.

What is 15

500

The center and radius of a circle with an equation of (x-5)2+y2=47

What is (5,0) and 6.86

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