Circle Terms
Radius & Diameter
Complex Shapes
Circumference
Area of Circles
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 in. What is the radius? 

What is 2.5 in. 

100

What is the perimeter of Figure B?

What is 12.56 cm. 

100

The diameter for this circle is 10 cm

What is 31.4 cm

100

The radius is 2 ft. What is the area of the circle?

What is 12.56 ft.

200

The longest line in a circle, passes through center

What is DIAMETER

200

The radius of this circle is 5 ft. What is the diameter?

What is 10 ft

200

What is the area of Figure B? 

What is 50.24 cm. 

200

The radius for this circle is 13 cm

What is 81.64 cm

200

The radius of a circle is 5in. What is the area of the circle? 

What is 78.5 in.

300

The distance around a circle 

What is CIRCUMFERENCE

300

The diameter of a circle is 27 in. What is the radius?

What is 13.5 in

300

Looking at Figure C the d = 15 in. What is the perimeter of that shape? 

What is 23.55 in. 
300

The diameter of this circle is 25 cm

What is 78.5 cm

300

The diameter of a circle is 20 in. What is the area of the circle? 

What is 314 in? 

400

What is the inside of a shape called?

What is area? 

400

The diameter of this circle is 437 in. What is the Radius? 

What is 218.5 in

400

What is the perimeter of Figure A? 

What is 51.4 in. 

400

The radius for this circle is 45 cm

What is 282.6 cm

400

The diameter of a circle is 16 m. What is the area of the circle? 

What is 200.96 m.

500

the word we use to identify this number: 3.14

What is PI

500

The radius of this circle is 126.25 ft. What is the diameter?

What is 252.50 ft.

500

What is the area of Figure A?

What is 78.5 in. 

500

The Diameter for this circle is 3285 cm

What is 10314.9 cm

500
The diameter of a circle is 96.5 in. What is the area of the circle?
What is 7,310.12. 
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