Show:
Finding Radius or Diameter
Finding Circumference
Finding Area
Finding Diameter (Backwards Circumference)
Finding Radius
(Backwards Area)
100

The Diameter of this circle is 5. Find radius

What is 2.5

100
The diameter for this circle is 10
What is 31.4
100
The radius of this circle is 2
What is 12.56
100

The circumference is 69.94

What is 21

100

The area of the circle is 113.04. Find radius

what is 6
200

The radius of the circle is 4.75

what is 9.5

200
The diameter for this circle is 13
What is 40.82
200
The radius of this circle is 3
What is 28.26
200

The the circumference is 31.086

What is 9.9

200

The area of a circle is 186.17. Find radius.

What is the 7.7

300

The diameter of this circle is 27. Find radius

What is 13.5

300

The diameter of this circle is 25

What is 78.5

300
The radius of this circle is 21
What is 1384.74
300
The circumference of this circle is 15.7
What is 5
300

The area is 379.94. Find radius.

What is 11.

400

The radius of this circle is 21

What is 42

400
The radius for this circle is 45
What is 282.6
400
The radius of this circle is 52.4
What is 8621.6864
400
The circumference of this circle is 18.84
What is 6
400

The area of a circle is 56.72. Find diameter.

What is 8.5

500

The diameter of this circle is 0.325. Find radius

What is 0.1625

500
The Diameter for this circle is 3285
What is 10314.9
500
The radius of this circle is 6955
What is 151888158.5
500
The diameter of this circle is 194.68
What is 62
500

What is pi?

3.14