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Perimeter & Circumference

Perimeter & Circumference. Return to table of contents. Perimeter. Definition : The distance around a two-dimensional figure. l. w. w. l.

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Perimeter & Circumference

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  1. Perimeter & Circumference Return to table of contents

  2. Perimeter Definition: The distance around a two-dimensional figure. l w w l Note: (l) represents the Length, or longer side of the rectangle. (w) represents the Width, or shorter side of the rectangle. If no units are given, use "u".

  3. Perimeter (P) of a rectangle is found by solving the following formula: P = 2l + 2w Perimeter (P) of a square is found by doing four (4) times Side (s): P = 4s S Perimeter of a polygon is the sum of the lengths of the sides.

  4. 56 What is the Perimeter (P) of the following rectangle? 15 ft. 6 ft.

  5. 57 What is the Perimeter (P) of the square below? 7

  6. 58 What is the Perimeter (P) of the figure? 8 in

  7. 59 What is the Perimeter (P) of the figure? 8 cm 10 cm 3 cm 12 cm

  8. Circumference Definition: The outer boundary of a circle; the "perimeter" of the circle. Circumference Diameter

  9. The circumference (C) of a circle is found by using one of the following formulas: C = d or C = 2r or 2r C =

  10. C = d or C = 2r Diameter (d): Any straight line segment that passes through the center point of the circle, whose endpoints are on the circle. Radius (r): Any line segment from the center point of the circle, to any point on the circle---radius is 1/2 of the Diameter. oi of the circle, to any point on the circle---radius is 1/2 of the Diameter.

  11. C = d or C = 2r Pi (  ), a mathematical constant, is the ratio of a circle's circumference to its diameter. Note:

  12. 60 What is the Circumference (C) of a circle with a radius (r) of 7cm? (Use 3.14 for π) 7 cm

  13. 61 What is the Circumference (C) of a circle with a Diameter (D) of 11in.? (Use 3.14 for π) 11 in.

  14. 62 Find the circumference of a circle whose radius is 2.5 meters. (Use 3.14 for π)

  15. 63 A circle has diameter 8 yds. What is its circumference? (Use 3.14 for π)

  16. 64 The circumference of a circle is 37.68 cm. What is its radius? (Use 3.14 for π)

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