Show:
Basics
Area
Circumference
Arc Length
Sector Area
100
What is straight line from the center of a circle to a point on the circumference?
radius
100
What is the area of a circle with a radius of 2 inches?
12.6 inches²
100
A circle has a radius of 6 cm. What is the circumference?
37.7 cm.
100
If a circle has a radius of 4 inches, what is the arc length formed by a central angle of 90 degrees?
6.3 inches
100
If a circle has a radius of 5 inches, what is the sector area formed by a central angle of 90 degrees?
19.6 inches²
200
What is the distance around the edge of a circle called?
circumference
200
What is the area of a circle with a radius of 6 cm.?
113.1 cm.²
200
A circle has a radius of 2 inches. What is the circumference?
12.6 inches
200
If a circle has a radius of 5 inches, what is the arc length formed by a central angle of 90 degrees?
7.9 inches
200
If a circle has a radius of 9 inches, what is the sector area formed by a central angle of 90 degrees?
63.6 inches²
300
What is a straight line through the center of a circle to two points on the circumference?
diameter
300
What is the area of a pizza with a radius of 7 inches?
153.4 inches²
300
What is the circumference of a bike tire with a radius of 10 inches?
62.8 inches
300
If a circle has a radius of 10 cm., what is the arc length formed by a central angle of 45 degrees?
7.9 cm.
300
If a bike tire has a radius of 15 inches, what is the sector area formed by a central angle of 100 degrees?
196.3 inches²
400
What is a portion of the circumference of a circle?
arc
400
What is the area of a pie with a radius of 10 cm.?
314.2 cm.²
400
What is the circumference of a pizza that has a radius of 8 inches?
50.3 inches
400
If a circle has a radius of 6 inches, what is the arc length formed by a central angle of 70 degrees?
7.3 inches
400
If a cookie has a radius of 4 cm., what is the sector area formed by a central angle of 180 degrees?
25.1 inches²
500
What is a shape enclosed by two radii and the arc between them?
sector
500
What is the area of a circle with a diameter of 10 inches?
78.5 inches²
500
If a circle has a diameter of 14 cm., what is its circumference?
44 cm.
500
If a circle has a diameter of 4 inches, what is the arc length formed by a central angle of 90 degrees?
3.1 inches
500
If a circle has a diameter of 8 inches, what is the sector area formed by a central angle of 90 degrees?
12.6 inches²