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Circle Terms
Finding Radius
(find the radius for all)
Finding Diameter (Find Diameter for all)
Finding Circumference(Find Circumference for all)
Chords
100
The distance from the center of a circle to the outside, also half of the diameter
What is radius
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

A chord is 25, what is the length of a chord that intersects it.

What is 25

200

The longest chord in a circle

What is the Diameter

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 40.84

200

Line segment AB is a chord. It is intersected at point E by a chord CD. AE is 5 and EB is 4 what is the length of chord CD?

What is 20

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

Chord AB intersects chord CD at point E. If AB has a length of 14 and CE has a length of 5, what is the length of DE?

What is 2.8

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

The diameter of this circle is (x+3) and the radius is x.

What is 3?

400

The diameter of a circle is x and the radius is (x-9).

What is 18

400

The radius for this circle is 45

What is 282.7

400

Line segment AB is a chord. It is intersected at point E by a chord CD. AE is x and EB is 12. CE is (x+2) and DE is 6. What is the value of x?

What is 2

500
3.14 or 22/7
What is pi?
500

The diameter of this circle is (x+15) and the radius is (x-4). 

What is 19

500

The diameter is (x+12) and the radius is (x-2).

What is 28

500

The Diameter for this circle is 3285

What is 10320.1

500

Chord AB intersects chord CD at point E. If the length of AE is 2, BE is (2y+1), CE 3, and DE (y+4). What is the value of y?

What is 10