Circle
Circumference - Radius
Radius and Diameter
Given Circumference
Area of Circle
100
The distance around the outside of a circle.
Circumference
100
Find circumference: When diameter = 10
Use 3.14 as a .
31.4 un
100
What is the radius if the diameter is 37?
18.5
100
If the circumference of a circle is 18.84, what is the diameter?
6 un
100
What is the area of a circle with a radius of 3?
28.26 un2
200
A straight line passing from side to side through the center of a circle
diameter
200
Find Circumference when radius = 6
Use 3.14 as a .
37.68 un
200
What is the diameter if the radius is 11.5?
23
200
If the circumference of a circle is 69.08, what is the radius?
11 un
200
What is the area of a circle with a radius of 5?
Use 3.14 as a .
78.5 un2
300
If the diameter is 33, what is the RADIUS?
16.5 un
300
Find Circumference when Radius = 4.5
28.26 un
300
What is the diameter if the radius is 31?
62
300
If the circumference of a circle is 24.5, what is the diameter?
7.8 un
300
What is the area of a circle with a diameter of 20?
314 un2
400
A straight line from the centre of the circle to the outer edge.
Radius
400
Find Circumference when Diameter =14
43.96 un
400
What is the radius if the diameter is 45?
22.5
400
If the circumference of a circle is 46, what is the radius?
23 un
400
What is the area of a circle with a diameter of 22?
379.94 un2
500
If Circle A has a radius of 2 and Circle B has a diameter of 2, which circle has a bigger circumference?
Circle A
500
Find Circumference when Radius = 24.5
153.86 un
500
What is the radius if the diameter is 19?
9.5
500
If the circumference of a circle is 110, what is the diameter? Round to the nearest whole number.
35 un
500
What is the area of a circle with a diameter of 4?
12.56 un2