by BlastRoom
Find the circumference and area of a circle from its radius or diameter using a stated value of pi.
#circle_measurements#us_grade_6_math

40 questions
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More correct answers pulls the rope your way.
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A circle has a radius of 9 cm. What is its diameter?

A circle has a diameter of 26 centimeters. What is its radius?

A circle has a radius of 5 m. Use pi = 3.14. What is its circumference?

A circle has a diameter of 12 m. Use pi = 3.14. What is its circumference?

A circle has a radius of 4 cm. Use pi = 3.14. What is its area?

A circle has a diameter of 20 centimeters. Use pi = 3.14. What is its area?

A circle has a radius of 7 cm. Use pi = 22/7. What is its circumference?

A circle has a radius of 14 m. Use pi = 22/7. What is its area?

A circle has a diameter of 42 cm. Use pi = 22/7. What is its circumference?

Which expression gives the area of a circle whose radius is r?
A circle is measured in centimeters. Which unit correctly labels its area?
Use pi = 22/7. A circle with a radius of 21 m has a circumference of 132 m.
Use pi = 3.14. A circle with a radius of 6 cm has a circumference of 37.68 cm.

In any circle, the radius is longer than the diameter.
A circular garden has a radius of 15 m. Use pi = 3.14. How much fencing goes all the way around it?

A round pizza has a diameter of 16 centimeters. Use pi = 3.14. What is its area?

A round tabletop has a diameter of 4 m. Use pi = 3.14. What is the distance around its edge?

A circle has a radius of 30 cm. Use pi = 3.14. What is its area?
A round plate has a diameter of 7 cm. Use pi = 22/7. What is its area?

A gardener wants to know how much soil will cover the top of a round flower bed. Which measurement of the circle does she need?
A circle has a radius of 7 inches. What is its diameter?

A circle has a diameter of 18 cm. What is its radius?

Which expression gives the circumference of a circle with diameter 10 feet?
A circle has radius 6 meters. What is its circumference in terms of π?
Using π ≈ 3.14, what is the approximate circumference of a circle with diameter 8 cm?

A circular sticker has radius 4 inches. What is its area in terms of π?
Using π ≈ 3.14, what is the approximate area of a circle with radius 5 yards?
A circle has circumference 24π centimeters. What is its radius?
True or False: If a circle’s diameter doubles, its circumference also doubles.
True or False: A circle with radius 3 units has area 6π square units.
A bicycle wheel has a diameter of 26 inches. About how far does the bike travel in one full wheel rotation? Use π ≈ 3.14.

A circular garden has diameter 14 feet. What is its area in terms of π?

Two circles have radii 4 cm and 8 cm. How many times as large is the area of the larger circle?

A circle’s circumference is 31.4 inches when π ≈ 3.14. What is its diameter?
Which measurement describes the distance around a circle?
A circle has radius 10 cm. Written in terms of π, its circumference is a number of centimeters and its area is a number of square centimeters. Which of the two numbers is greater?
True or False: The radius of a circle is always half of its circumference.
A circular lid has an area of 36π square centimeters. What is its radius?
A track is shaped like a circle with radius 20 meters. One lap is the circumference. What is the exact distance of one lap?
Using π ≈ 3.14, what is the approximate area of a circular table with diameter 12 feet?
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40 questions