Parts of a Circle
Radius/Diameter
Circumference
Area
Other
100
The part of a circle which is used to name circles.
What is the center.
100
The radius is 2 cm, find the diameter.
What is 4 cm.
100
Name the formula for finding circumference of a circle.
What is c=2TTr or c=TTd.
100
Name the formula for finding the area of a circle.
What is a=TTr^2.
100
Name what type of number pi is.
What is irrational.
200
The part of a circle which is a line segment having two points on the circle and passes through the center.
What is the diameter.
200
The radius is 26 ft, find the diameter.
What is 52 ft.
200
Find circumference of a circle with a radius of 6 cm.
What is 37.7 cm.
200
The radius of a circle is 4 ft. Name the area of the circle.
What is 50.2 ft.
200
Diameter is an example of this.
What is a chord.
300
The part of the circle which is half the diameter.
What is the radius.
300
The diameter is 100 m, find the radius.
What is 50 m.
300
Find the circumference of a circle whose diameter is 32 m.
What is 100.5 m.
300
The diameter of a circle equals 25 in, name the area of the circle.
What is 490.8 in.
300
Name the relationship between circumference and area.
What is the radius.
400
The part of a circle which is the distance around the circle.
What is the circumference.
400
The diameter is 12 ft, find the radius.
What is 6 ft.
400
Circumference is 31.4 m, name the radius of the circle.
What is 5 m.
400
The area of a circle is 153.9 m. Name the radius of the circle.
What is 7 m.
400
Name the relationship between the diameter and the circumference.
What is pi.
500
The part of the circle which is a line segment connecting two points on the circle.
What is a chord.
500
Name the formula which you could use to find radius when given diameter.
What is r=d/2.
500
The circumference of a circle equals 50.2 ft, name the diameter.
What is 16 ft.
500
The area of a circle is 1017.4 in. Name the diameter of the circle.
What is 18 in.
500
The radius of circle one is 17 m. The circumference of circle two is 110.3 m. Name the larger circle and tell why.
What is circle two becuase the circumference of circle one is 106.8 m which is smaller than 110.3 m.