Parts of a Circle
A straight line from the center to the circumference of a circle.
What is radius?
What is the radius of a circle with a diameter of 20cm?
The diameter is 8 ft.
What is the diameter of a circle with a radius of 4 ft?
What is the circumference of a circle with a diameter of 15ft?
47.1 feet
This letter looks like a circle.
What is O?
A straight line passing from side to side through the center of a circle.
What is diameter?
The radius is 18ft.
What is the radius of a circle with a diameter of 36ft?
The diameter is 16 ft.
What is the diameter of a circle with a radius of 8 ft?
What is the circumference of a circle with a diameter of 16in?
50.24in
Pi is typically rounded to this number.
What is 3.14?
The distance around a circle.
What is circumference?
The radius 7in.
What is the radius of a circle with a diameter of 14in?
The diameter is 15 ft.
What is the diameter of a circle with a radius of 7.5 ft?
What is the circumference of a circle with a diameter of 5 feet?
15.7 feet
What is 360?
A straight line segment whose endpoints both lie on the circumference.
What is a chord?
The radius is 100 miles.
What is the radius of a circle with a diameter of 200 miles?
The diameter is 1,000 miles.
What is the diameter of a circle with a radius of 500 miles?
What is the circumference of a circle with a radius of 33cm?
207.24
The ratio of a circle's circumference and diameter.
What is Pi?
Any portion of the circumference.
What is an arc?
The radius is 60cm.
What is the radius of a circle with a diameter of 120cm?
The diameter is 101 feet.
What is the diameter of a circle with a radius of 50.5 feet?
What is the circumference of a circle with a radius of 50cm?
314cm
All points on a circle are this from the center.
What is equidistant?