Circle Terms
Finding Radius
(find the radius for all)
Finding Diameter (Find Diameter for all)
Finding Circumference(Find Circumference for all)
Finding Area
(Find area for all)
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

The radius is 2.5

100

The radius of this is 5

Diameter is 10

100

The diameter for this circle is 10


Find Radius for Bonus 20 points

Circumference is 31.4


BONUS - Radius is 5

100

The radius of this circle is 5

Area is 78.5

200

The distance across the widest part of a circle that passes through the center. Double the radius.

What is the Diameter

200

The diameter is 12

The radius is 6

200

The radius of this circle is 2.5

For a Bonus 20 points, write down one class expectation in Ms. Portlock's class. 

"In Ms. Portlock's class she expects that we . . ."

Diameter is 5


BONUS - judged by Ms. Portlock :) 

200
The diameter for this circle is 13
What is 40.82
200

The diameter of this circle is 6.

Area =  28.26

300

The distance around the outside of a circle

What is the circumference?

300

The diameter of this circle is 27

The radius is 13.5

300

The circumference of this circle is 15.7

Diameter is 5

300
The diameter of this circle is 25
What is 78.5
300

The radius of this circle is 21

Area is 1384.74

400
The total amount of space inside of a circle
What is the area?
400

The diameter of this circle is 0.325

The radius is 0.1625

400

The circumference of this circle is 18.84. 

Find radius and diameter for bonus 50 points. 

Diameter is 6


BONUS - radius is 3

400
The radius for this circle is 45
What is 282.6
400

The radius of this circle is 52.4

Area is 8621.69

500

3.14 or 22/7. The ratio between circumference and diameter. 

What is pi?

500

The circumference of this circle is 37.68. 


HINT = how do we find circumference?

The radius is 6

500

The circumference of this circle is 194.68


Find Area for Bonus 100 points. 

The diameter is 62. 


BONUS - Area is 3017.54

500

The Radius for this circle is 32.5

What is 204.1

500

The circumference of this circle is 84.

For Bonus 100 points, tell me a synonym for the word circumference. 

Area is 561.78


BONUS - perimeter of a circle/distance around a circle

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