Diameter
If the radius of a circle is 2 centimeters, then what is the diameter?
4 cm
If the diameter of a circle is 4, then what is the radius?
2
Find the circumference of a circle with a diameter of 2.
6.28
Find the area of a circle with a radius of 4 inches.
50.24 inches squared
What consists of all of the points that are the same distance away from a particular point called the center?
A Circle
What is the formula for diameter?
2 * r
d/2
What is the formula for circumference?
3.14*d
What is the formula for Area of a circle?
3.14*r*r
The radius
If the diameter of a circle is 8 millimeters, then what is the radius?
4 mm
If the radius of a circle is 25 centimeters, then what is the diameter?
50 cm
Find the circumference of a circle with a diameter of 7.5 inches.
23.55
Find the area of a circle with a radius of 3.5 centimeters.
38.47 centimeters squared
A segment that connects two opposite points on a circle
The Diameter
A wheel makes 20 revolutions to cover a distance of 66 m. Find the diameter of the wheel.
1.05 m
What is the radius of a circle with an area of 201 inches squared?
8 inches
If the radius of a circle is 2 inches, then what is the circumference?
12.56 in
If the diameter of a circle is 4, then what is the area?
12.56
The distance around the circle
The Circumference
What is the diameter of a circle that has a circumference of 28 cm?
8.9
What is the radius of a circle with a circumference of 17 inches?
2.7 inches
The diameter of a cart wheel is 2.1 m. Find the distance traveled when it completes 100 revolutions.
660 m
A silver wire when bent in the form of a square encloses an area of 121 sq. cm. If the same wire is bent in the form of a circle. Find the area of the circle.
154 sq. cm
The exact value for the constant of proportionality when discussing circles.
Pi