Circles Vocabulary
Finding Radius
Finding Diameter
Finding Circumference
Finding Area
100

The distance from the center to the circumference of a circle.  

What is a radius?

100

The Diameter of this circle is 50 feet

What is 25 feet?

100

The radius of this circle is 5 ft

What is 10 ft

100

The diameter for this circle is 10 yds

What is 31.4 yds?

100

The radius of this circle is 2 in. 

What is 12.56 in2

200

The distance from one point on a circle, through the center, to another point on the circumference of the circle.

What is a diameter? 

200

The diameter of this circle is 12 cm

What is 6 cm?

200

The radius of this circle is 26 in

What is 52 in? 

200

**DAILY DOUBLE**

The diameter for this circle is 13 in. 

What is 40.82 in? 

200

The radius of this circle is 3 ft. 

What is 28.26 ft2?

300

The distance around the edge of a circle.

What is the circumference? 

300

The diameter of this circle is 27 in.

What is 13.5 in? 

300

The radius of this circle is 100 ft

What is 200 ft? 

300

The diameter of this circle is 25 ft.

What is 78.5 ft?

300

The radius of this circle is 21 in. 

What is 1384.74 in2?

400

The amount of space that occupies the inside of a circle. 

What is the area of a circle? 

400

The Circumference of the circle is 12.56 yards 

What is 2 yards

400

The circumference of this circle is 15.7 yds

What is 5 yds? 

400

The radius for this circle is 40 ft.

What is 251.2 ft?

400

The diameter of this circle is 16 mm.

What is 200.96 mm2?

500

3.14159265......

What is Pi? 

500

The area of a circle is 28.26 mm

What is 3 mm? 

500

The area of the circle is 113.04 in.

What is 12 in? 

500

The area of this circle is 50.24 ft.

What is 25.12 ft?

500

The circumference of this circle is 56.52 in. 

What is 254.34 in2