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Circle Terms
Circle details
Finding Diameter for all
Finding Radius for all
Circle FYI
100
A round 2 dimensional shape that looks like an O.
What is a circle?
100
A shape that forms half a circle.
What is a semicircle?
100
The radius of this is 5cm.
What is 10cm?
100
The diameter of the circle is 10cm.
What is 5cm?
100
The number of degrees in a circle.
What is 360?
200
The line around the outside of a circle .
What is the circumference?
200
A straight line joining two points on a circle.
What is a chord?
200
The radius of this circle is 25 cm.
What is 50cm?
200
The diameter of the circle is 50 cm.
What is 25cm?
200
The number of degrees in a semicircle.
What is 180?
300
A straight line that passes from one side of a circle to the other through the center.
What is the diameter?
300
An example of the longest possible chord.
What is the diameter?
300
The diameter is two times this.
What is the radius?
300
The longest chord of the circle is 20cm.
What is 10cm?
300
This is a 3D circle.
What is a sphere?
400
A straight line from the center of a circle to the edge.
What is the radius?
400
3.14 or 22/7
What is pi?
400
The distance from the center to the circumference is 1/2meter.
What is 1m?
400
The distance from the center to the circumference is 40cm.
What is 40cm?
400
The most important circle invention in history.
What is the wheel?
500
All points on the edge of a circle are the same distance from this.
What is the center?
500
The region between a chord and the part of the circumference it joins.
What is a segment?
500
The length of the longest chord in the circle is 10cm.
What is the 10cm?
500
The radius is used to measure these.
What is circumference and area?
500
Pi is used to measure this.
What is area and circumference?