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7th Grade Math (Math 7) · Chapter 9 · Lesson 9.2 · Printable PDF

Circumference Worksheet with Answer Key

6 problems on circumference: finding radius, diameter and circumference from each other, exact versus rounded answers, hat sizes, a revolving door, a fence around a tower, and a shelf board with a half circle cut. 2 pages, with a worked answer key.

6 problems2 pagesanswer key
Printable Circumference worksheet with answer key - 7th Grade Math (Math 7) (Page 1 PDF preview)
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Try one first: a free Chapter 1 worksheet (PDF, no sign-in).

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What's on the worksheet

  1. Find the other two measurements of each circle, giving C in terms of \pi.
    r = 9 cmd = 15 mC = 26\pi inC = 7\pi ftr = 2.4 km
  2. Find the mistake in Jasmine's circumference of a circle with radius 7 cm.
  3. Word problem: hat sizes as the diameter of a circle around the head.
  4. Word problem: the distance the revolving door's wing tips move.
  5. Word problem: fence length around a round stone tower.
  6. Find the perimeter of a shelf board with a half circle cut out.

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The free lesson teaches it with worked examples and practice problems.

Circumference: the lesson ›

More Chapter 9 worksheets: Circles: circumference and area