Circle Basics
Circumference and Area
Angles
100
This is the distance from the center of a circle to any point on the circle.
radius
100
True or False: The circumference of a circle is approximately three times the diameter.
TRUE
100
An angle that measures less than 90 degrees is called this.
Acute
200
What gives you the measurement around the circle. It is like perimeter.
What is circumference.
200
What are the two estimates we have learned to use for pi?
3.14 & 22/7
200
Angles that add up to 180 degrees are called this.
Supplementary Angles
300
If a circle has a diameter of 10 cm, what is its radius?
What is 5 cm
300
What is the circumference of a circle with a diameter of 8 inches.
What is 25.12 inches
300
What is the measure of the angle in this photo?
135 degrees
400
What line segment is double the radius?
What is a diameter
400
What is the circumference of a circle with a radius of 7 feet
What is 43.96 feet
400
Name a pair of complementary angles.
Angle BAC & Angle DAC
500
A pizza has a diameter of 12 inches. What is the approximate area of the pizza?
What is 113.04 inches squared
500
What is the area of a circle with a diameter of 10 feet
What is 78.5 feet squared
500
Solve for x.
x = 31 degrees