Circles are Pointless!

Come to Terms

100

A straight line from the center to the edge of the circle.

What is radius?

200

A straight line passing from side to side through the center of a circle.

What is diameter?

300

The distance around a circle.

What is circumference?

400

The space inside a circle.

What is area?

500

A straight line segment whose endpoints both lie on the edge of the circle.

What is a chord?

Ravioli Ravioli

100

Circumference

C=pid

200

Area of a Circle

A=pir^2

300

Diameter 

d=2r

400

Radius

r=d/2

500

Degrees in a Triangle with angles measuring x, y, and z degrees. 

x^o +y^o +z^o =180^o

Around & Around

100

Find the circumference of a circle with a diameter of 8 ft. In terms of pi

C=8pift

200

Find the circumference of a circle with a diameter of 12 ft to the nearest tenth.

37.7 feet

300

Find the circumference of a circle with a radius of 4.5 ft. In terms of pi

9pift

400

Find the circumference of a circle with a radius of 13 ft to the nearest hundredths place.

81.68 feet

500

Find the circumference of a circle with a radius of 1.2 ft, round to the nearest thousandths place.

7.540 feet

Taking Up Space

100

Find the area of a circle with a radius of 5 cm. In terms of pi

A=25picm^2

200

Find the area of a circle with a radius of 16 inches to the nearest tenth.

804.2 in²

300

Find the area of a circle with a diameter of 3 ft. In terms of pi

A=3.0625pift^2

400

Find the area of a circle with a diameter of 11 cm to the nearest hundredths place.

95.03 cm²

500

Find the area of a circle with a diameter of 10.2 in to the nearest thousandths.

81.713 in²

Reverse Reverse

100

What is the area, in terms of pi, of a circle with a circumference of

6pift

A=9pift^2

200

What is the area, to the nearest tenth, of a circle with a circumference of

8picm

50.3 cm²

300

What is the area, to the nearest hundredth, of a circle with a circumference of 

14.6pi feet

167.42 ft²

400

What is the area, in terms of pi, of a circle with a circumference of 

20.8pi m

108.16pi m^2

500

What is the area, to the nearest thousandths, of a circle with a circumference of 

52pi ft

2123.717 ft²

Odd Man Out

100

How many degrees are in every triangle? 

180 degrees

200

If a triangle has 2 angles measuring 30 degrees and 70 degrees, how many degrees are in the third angle?

80 degrees

300

How many triangles can be created with the following degree measures: 

40^o , 55^o, 100^o

0 Triangles (not possible!)

400

5ft , 17 ft, 13 ft

Are these possible side lengths for a triangle? 

YES! 

5 + 13 > 17

500

Two sides of a triangle measure 10 cm and 18 cm. 

What is a possible side length for the third side that would create one unique triangle? 

8 cm to 28 cm (not including either one)