Circle Terms
The distance from the center of a circle to the outside, also half of the diameter.
Radius
The Diameter of this circle is 5 inches. Find the radius.
2.5 inches
The radius of a circle is 5 inches. Find the diameter of the circle.
10 inches
The diameter for this circle is 10 in. Find the circumference.
31.4 in
The radius of the circle is 2m, what is the area?
12.56 m2
The longest chord in a circle.
Diameter
The diameter is 12 cm, what is the measure of the radius?
6 cm
The radius of the circle is 2.5 m, what is its diameter?
5 m
The radius of a circle is 6.5 m. Find the circumference.
40.82 m
What is the area of the circle whose radius is 3m?
28.26 m2
A line joining two points on the circle.
Chord
The diameter of this circle is 27cm, find the radius.
13.5cm
90 cm
What is the circumference of a circle with the diameter of 15.7 cm?
49.298 cm
The circle has a radius of 21cm, find its area.
14,572.74 cm2
The total amount of space inside of a circle.
Area
The diameter of this circle is 437cm. Give the measure of the radius.
218.5cm
The radius of a circle is 1642.5 cm, find its diameter.
3285 cm
The circumference of this circle is 18.84 ft, find the diameter.
6 ft
The radius of the circular room is 12 ft. Find the area.
452.16 ft2
pi is equivalent to ___
3.14 or 22/7
If the diameter of the circular pool is 0.325km. What is its radius?
0.176 km
Philippine Arena Field has a radius of 194.68 ft. What is its diameter?
389.36
Find the circumference of the circular field whose radius is 124 ft.
778.72 ft.
The circular table has a radius of 24 inches. What is its area?
1808.64 in2