Circle Words
Area & Circumference
Arc Length
Sector Area
Word Problems
100
The distance from the edge to the centre
Radius
100
The area of a circle with radius 5cm
78.5cm2
100
5.2cm
100
13.1cm2
100
The arc length if the radius is 7cm and the angle is 50 degrees
6.1cm
200
The distance all the way around the outside
The circumference
200
The circumference of a circle with diameter 9cm
28.2cm
200
28.3
200
169.6
200
The sector area if the radius is 3cm and the angle is 85 degrees.
6.7cm2
300
The distance all the way across the circle
The diameter
300
The area of a circle with diameter 18cm
254.5cm2
300
18.8 yards
300
75.4 yards2
300
The distance a 45cm long pendulum travels when it swings through an angle of 60 degrees.
47.1cm
400
A piece of the edge of the circle
An arc
400
The circumference of a circle with radius 2cm
12.6cm
400
5.0cm
400
15.1cm2
400
The area of a garden plot with a radius of 2.5m and an angle of 90 degrees.
4.9m2
500
A "slice" of the circle
A sector
500
The area of a quarter-circle with radius 10cm
78.5cm2
500
44.0cm
500
175.9cm2
500
The area of a piece of a 12-inch diameter pizza which was cut into 8 equal slices.
14.1cm2