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Circle Terms
Finding Radius
(find the radius for all)
Finding Diameter (Find Diameter for all)
Finding Area
(Find area for all)
100

The distance from the centre of a circle to the outside; it is also half of the diameter.

Radius

100

The diameter of this circle is 5

The radius is 2.5

100

The radius of this circle is 5

The diameter is 10

100

The radius of this circle is 2

The area is 12.56.

200

What is the longest chord in a circle?

The diameter

200

The diameter is 12

The radius is 6

200

The radius of this circle is 2.5

The diameter is 5.

200

The radius of this circle is 3

The area is 28.26

300

A line segment that touches a circular arc on both sides.

A chord

300

The diameter of this circle is 27

The radius is 13.5

300

The circumference of this circle is 15.7

The diameter is 5.

300

The radius of this circle is 21

The area is 1384.74

400

What is the area of a circle?

The total amount of space inside of a circle.

400

The diameter of this circle is 437

The radius is 218.5?

400

The circumference of this circle is 18.84

The diameter is 6.

400

The diameter of this circle is 108.4.

The area is 8621.6864

500

What is pi?

Approximately 3.14

500

The diameter of this circle is 0.325

The radius is 0.1625

500

The area of a circle is 2826cm².

The diameter is 60cm.

500

The radius of this circle is 6955

The area is 151888158.5