Circle Terms
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
100
The distance from the center of a circle to the outside, also half of the diameter
What is radius
100
The Diameter of this circle is 5
What is 2.5
100
The radius of this is 5
What is 10
100
The diameter for this circle is 10
What is 31.4
100
The radius of this circle is 2
What is 12.56
200
The longest chord in a circle
What is the Diameter
200
The diameter is 12
What is 6
200
The radius of this circle is 2.5
What is 5
200
The diameter for this circle is 13
What is 40.82
200
The radius of this circle is 3
What is 28.26
300
A line through the circle.
What is a chord?
300
The diameter of this circle is 27
What is 13.5
300

The circumference of this circle is 15.7 find the diameter

What is 5

300

The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain? Round to the nearest tenth.

What is about 59 feet 

300

A dinner plate has a radius of 6 centimeters. What is the area?

What is about 113 feet2

400
The total amount of space inside of a circle
What is the area?
400
The diameter of this circle is 437
What is 218.5?
400

The circumference of this circle is 18.84 find the diameter

What is 6

400

The distance around the wheel of a truck is 9.42 feet. What is the diameter of the wheel?

What is about 3 feet?

400
Find the area of a window with a diameter of 18 inches

What is about 254 in2

500
3.14 or 22/7
What is pi?
500
The diameter of this circle is 0.325
What is 0.1625
500

The circumference of this circle is 194.68in  find its diameter

What is 62 in

500

An asteroid hit the earth and created a huge round crater. Scientists measured the distance around the crater as 78.5 miles. What is the diameter of the crater?

What is about 25 feet

500

***DOUBLE JEOPARDY THIS QUESTION IS WORTH DOUBLE!

The area of a circle is 616 cm². Find its circumference.

What is approximately 88cm

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