All about pi
radius/diameter
Vocabulary
Circumference
Area of a Circle
100

π is represented by what decimal

3.14

100

If the diameter of a circle is 17 units, what is the radius

r = 8.5 units

100

I am a collection of points on the same plane equidistant from the same point.

What is a Circle

100

Given the diameter of a circle is 7.5 cm what is the circumference

C = 23.55 cm

100

Given the radius of a circle is 7.5 cm what is the area

A = 176.625 square cm

200

What is the circumference of a circle in terms of diameter

C = dπ or d(pi)

200

If the radius is 12.5 units what is the diameter

d = 25 units

200

I am a segment formed by connecting a point on the circle and the center of the circle.

What is a radius

200

If the radius of a circle is 6.25 in what is the circumference

C = 39.35 in

200

If the diameter of a circle is 12 in what is the area

A = 113.04 square inches

300

What is the circumference of a circle in terms of the radius

C = 2πr

300

If the circumference of a circle is 50.24 units what is the diameter

d = 16 units

300

The distance around a circle

what is circumference

300

If the diameter of a circle is 50 ft what is the circumference

C = 157 ft

300

If the diameter of a circle is 50 ft what is the area

A = 1962.5 square ft

400

What is the formula for the area of a circle

A = πr^2

400

If the area of a circle is 50.24 square units what is the radius

r = 4 units

400

A ratio of two different measures in which either the numerator or the denominator is 1

What is a unit rate

400

If the radius of a circle is 17 mm what is the circumference

C = 106.76 mm

400

If the radius of a circle is  30 mm what is the circumference

A =  2826 square mm

500

π is represented by what fraction?

22/7

500

If the diameter of a circle is 57.5 units what is the radius

r = 28.75

500

The distance across a circle through the center

diameter

500

You are trying to build a play area for Snoopy.  His leash is 12 feet long.  How much will the circumference of the play area be

C = 75.36 ft

500

You are trying to build a play area for Snoopy.  His leash is 12 feet long.  How much play area will Snoopy have

A = 452.16 square ft

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