PARTS OF THE CIRCLE
FIND THE RADIUS OR DIAMETER
CIRCUMFERENCE
AREA
RANDOM MATH
100
What part of a circle is line BO?
Radius
100
What is the diameter of a circle with radius 11 in?
22in
100
What is circumference?
The length around a circle.
100
What is the area of a circle measuring?
Measures the amount of space inside the circle
100
What is 45 times 22?
990
200
What part of the circle is line DE?
Chord
200
What is the radius of a circle with a diameter of 31 in?
15.5in
200
What are both of the formulas for circumference?
C=2(pi)(r)
C=(pi)d
200
What is the formula for area of a circle?
A=(pi)(r)(r)
200
List 3 different shapes. (Can not be square, rectangle, or triangle)
Answers may vary
300
What is the name of a line that touches both sides of the circle and goes through the center?
Diameter
300
What is the radius of a circle with a diameter of 17.7ft?
8.85ft
300
What is the circumference of a circle with a radius of 13ft?
81.64ft
300
If you want to find the area of a circle and you are given the diameter, what do you need to do first? Be specific.
You need to half the diameter to get the radius.
300
Name two different triangles.
Answers may vary
400
What type of arc is CDE?
semi-circle
400
What is the diameter of a circle with radius of 8.2ft?
16.4 ft
400
What is the circumference of circle with a diameter of 14.5in?
45.53in
400
What is the area of a circle with a radius of 6.2in?
120.70in (squared)
400
Solve the equation.
3x+4=22
x=6
500
How many diameters are drawn on the circle?
2
500
True or False
The diameter is half the length of the radius.
False
500
What is the circumference of a circle with radius of 12in?
75.36in
500
What is the area of a circle with a diameter of 12ft?
113.04 ft(squared)
500
What operation would you use to find the circumference of a circle?
multiplication