area
Circumference
finding area from circumference
finding circumference from area
challenging problems
100

I have a circle with 0.5 inches as a radius. What is the area? Use pi for 3.14

what is 3.14”2?

100

What is the circumference of a circle with 56.64 as diameter? Use 3.14 for pi. 

What is 178?
100

What is the area of a circle if the circumference is 10? Use 3.14 for pi

What is 7.962?

100

I have a circle with an area of 5467.65. What is the circumference?

What is 262?

100

I am trying to break a world record for a cookie.  I want chocolate chips every 2”. How many chocolate chip bags do I need if a bag has 45 chips? The diameter is 6 feet 8 inches. Use 3.14 for pi

What is 55 full bags and 32 chocolate chips?

200

What is the area of a circle if the radius is 6.78? Use 3.14 for pi

What is 1442?

200

What is the area of a circle with 3.6 inches as a diameter? Use 3.14 for pi 

What is 10.2

200

What is the area of a circle with a 6.54” circumference? Use 3.14 for pi

What is 1.08”?

200

I have a circle that has a area of 602002. What is the circumference?

What is 869.7

200

Is this a circle: the area is 34.56 and the circumference is 21?

What is no?

300

What is the area if the radius is 5.67? Use 3.14 for pi

What is 1012?

300

I have a circle has an area of 16.2. What is the diameter?

What is 4.54?

300

What is the area of a circle with a circumference of 647.65? Use 3.14 for pi

What is 334002?

300

I have a circle with an area of 3.458. What is the circumference? Use 3.14 for pi

What is 6.59?

300

The base of a spinny chair is 9” in radius, and the pole is .76” in radius. What is the area of the base showing? Use 3.14 for pi

What is 252.19”?

400

What is the area of a circle with a diameter of 6.78? Use 3.14 for pi

What is 36.1?

400

The circumference of a circle is 356. What is the radius?  

What is 56.67?

400

What is the area of a circle if the circumference is 3.98? Use 3.14 for pi

What is 1.262?

400

What is the circumference of an circle with an area of 675.4? Use 3.14 for pi

What is 92.1?

400

I have a circle with pi diameter. What is the area, circumference, and radius(in terms of pi for area), and area rounded to the nearest 2 digits? Use 3.14

What is 3.14π, 7.75, 9.86, and 1.87

500

What is the area of a circle of the diameter is 45.62 inches? Use 3.14 for pi

What is 1630”2?

500

What is the circumference of a circle if the diameter is 2.45? Round to the nearest two digits and use 3.14 for pi

What is 7.678?

500

What is the area of a circle if the circumference is 10.78? Use 3.14 for pi

What is 9.252?

500

What is the circumference of a circle with the area of 465.45? Use 3.14 for pi

What is 76.5?

500

I have a circle with π diameter. What is the area?

What is π3?


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