Attributes of a Circle
Area
Circumference
Miscellaneous
100

How do you determine the radius given the diameter of a circle?

What is D/2?

100
Name the formula used to determine the area of a circle?

What is A = pi(r2)?

100

Name ONE formula that can be used to deterine the circumfernce of a circle.

What is C = 2(pi)r or C = pi(d) ?

100

State the difference:

-5-3 = 

What is -8?

200

How do you determine the diameter of the circle given the radius?

What is Rx2?

200

A number that can be used to ESTIMATE pi

What is 3?

200

A circle has a diameter of 3. Determine the circumference. Use 3.14 for pi.

What is C = 9.42?

200

State 2/5 as a decimal.

What is 0.40?

300

You are trying to figure out how much yarn is needed for around the table. This describes the ...

What is circumference?

300

A circle has a diameter of 8inches. Determine the area of the circle. Use 3.14 for pi.

What is A = 50.24 square inches?

300

A circle has a radius of 8. Determine the circumference of the circle. Use 3.14 for pi.

What is C = 50.24?

300

Name the Percent of Change formula.

What is big # - small #/ starting #

or the difference/ original amount?

400

What is the difference between area anf circumference of a circle?

What is area measuring the inside and circumference measuring the outside?

400

A circle has a radius of 5 meters. Determine the area of the circle. Use 3.14 for pi.

What is A = 78.5 square meters?
400

A circle has a diameter of 15.5. Determine the circumference of the circle. Use 3.14 for pi.

What is C = 48.67?

400

State a real life example of a composite figure.

What is a house?

(answers may vary)

500

True or False:

The area of a circle with a diameter of 5 inches is equal to the area of a circle with a radius of 2.5 inches.

What is true?

500

Two identical circles have the diameter of 4 yards. Determine the area of BOTH circles. Use 3.14 for pi.

What is A = 25.12 square yards?

500

Circle A has a radius of 6. Circle B has a radius of 3. Determine the difference between the circumferences of Circle A and Circle B.

What is C = 18.84?

500

State the formula used to determine the area of a semi circle.

What is A = pi(r2)/2?