Radius
Diameter
Circumference
Area
Area & Perimeter
100
What is the radius if the diameter is 586 mm
293 mm
100
Find the diameter if the radius is 72 yds.
144 yds
100
Find the circumference if the radius is 6 km.
About 37.68km or 38 km.
100
Find the area of a circle with a radius of 12 mm.
About 452.16 square mm OR 452 square mm.
100
What is the area of the figure?
About 13.42 ft squared OR 13 ft squared
200
What is the radius if the circumference is 18.8 in?
About 2.99in or 3in
200
Find the diameter if the circumference is 270 ft.
About 85.99ft or 86 ft
200
Find the circumference if the diameter is 44 cm.
About 138.16cm or 138 cm.
200
Find the area of a circle with a diameter of 50 ft.
About 1962.5 square ft OR 1963 square ft.
200
What is the area of the figure?
About 139.36 cm squared OR 139 cm squared
300
What is the radius if the circumference is 542 mi?
About 86.31mi or 6 mi
300
How many rotations does the tire need to do in order to travel 13,200 ft?
About 200 rotations.
300
Find the circumference of the black line. 
About 18.84in or 19 in.
300
Find the area of this shape.
About 37.68 square inches OR 38 square inches.
300
What is the perimeter of the figure?
About 13.42ft OR 13 ft
400
What is the radius of the circle?
Circumference : 43.96in
radius: 7in
400
Find the diameter if the circumference is 201 m.
About 64.01 m or 64 m.
400
Find the perimeter of this shape with a diameter of 5 ft.
About 12.85 ft or 13ft.
If you got 7.85ft or about 8ft, you forgot to add the straight line.
400
Find the area of this shape with a diameter of 11 yds.
About 47.49 square yards OR 47 square yards.
400
What is the perimeter of the figure?
About 45.68cm OR 46cm
500
What is the radius if the area is 1256 m2?
About 20 m
500
Find the diameter if the area is 113.04 square feet.
About 12 ft
500
Find the circumference if the area is 78.5 square inches.
About 31.4 in.
500
Find the area if the circumference is 50.24 mm.
About 200.96 square millimeters OR 201 square millimeters.
500
A goat is tied to a 6 foot rope. It travels around all day eating up all the grass. Now the farmer needs to plant new grass seed.
Each bag of grass seed covers about 4ft2.
How many bags of grass seed is the farmer going to have to buy in order to spread grass seed on the now muddy circle?
The farmer would need 29 bags in order to cover all of the area and would have seed left over.