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7th grade Distance around a circle worksheet

6 printable versionsBuilding Confidence10 questions · answer keyFree · no account

Level: Building Confidence · On Level · Challenge Me

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Distance around a circle

Grade 7 Math Worksheet - Building Confidence

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Circle the best answer, or write your answer on the line.

  1. Ari rolls a round button once along a line. The track is its circumference, about 3.14 diameters long. It rolls like it has somewhere to be. How long is the track in cm?

  2. Esme rolls a round hand mirror once along a line. The track is its circumference, about 3.14 diameters long. It waves at every square. How long is the track in cm?

  3. Jun rolls a round plate once along a line. The track is its circumference, about 3.14 diameters long. It is very good at rolling. How long is the track in cm?

  4. Kira rolls a round pizza once along a line. The track is its circumference, about 3.14 diameters long. The pizza is on a very round adventure. How long is the track in cm?

  5. Luz's button has a radius of 2.5 cm. Two radii make its diameter, and the circumference is about 3.14 diameters. It has four holes and no complaints. What is the circumference in cm?

  6. Milo's cookie has a radius of 3.5 cm. Two radii make its diameter, and the circumference is about 3.14 diameters. It is not going to last long. What is the circumference in cm?

  7. Tala lays string once around a round cookie and measures both. The string tickled the chocolate chips. How many diameters long is the string, to the nearest hundredth?

  8. Read this first

    Use this

    Grid, each square 2 cm by 2 cm. The string, pulled straight along a line, is 31.7 cm long. The hand mirror is 10 cm across.

  9. Zee lays string once around a round hand mirror and measures both. The mirror watched the whole time. How many diameters long is the string, to the nearest hundredth?

  10. Bo lays string once around a round clock face and measures both. Time did not stop for the string. How many diameters long is the string, to the nearest hundredth?

  11. Esme lays string once around a round pizza and measures both. The string is hungry for answers. How many diameters long is the string, to the nearest hundredth?

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7th grade Distance around a circle worksheet – printable
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About this worksheet

Distance around a circle (circumference). Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can find the distance around a circle (circumference) from its diameter or its radius, and write it in terms of π or as a decimal.
  • I can see that the distance around divided by the diameter is always about 3.14, and use that to work back to a diameter.
  • I can use a circumference in real problems: wheels that turn, the edge of a half circle, a ribbon with an extra piece.

Standard: 7.G.B.4

Words to know

circumference: The distance around the edge of a circle.

diameter: The distance all the way across a circle, through the middle.

radius: The distance from the middle of a circle to its edge. It is half a diameter.

pi (π): The number of diameters that fit around any circle: about 3.14.

in terms of π: An answer left as a number times π, like 14π, instead of a decimal.

half circle: Half of a circle, with a curved edge and a straight edge across the middle.

Common mistakes

Your child doubled a diameter that was already the full way across the circle. The distance around is about 3 diameters (3.14). Roll a round lid once along a table and compare the track with the width of the lid.

Your child used the radius where the diameter belongs. The distance around is about 3.14 diameters, and a diameter is two radii. Draw a circle together, mark both, and say which is longer.

Your child used an area rule (a length times itself, with 3.14) for the distance around. Distance around is a length along the edge; area counts the squares inside.

What to say

Ask: which are we measuring here?

Questions parents ask

What is the most common mistake with distance around a circle?

Your child doubled a diameter that was already the full way across the circle. The distance around is about 3 diameters (3.14). Roll a round lid once along a table and compare the track with the width of the lid.

Are these 7th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More grade 7 math

See all grade 7 math

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