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Understanding Perimeter: Definition and Calculation Methods

This lesson focuses on the concept of perimeter, defined as the distance around a figure. Find the perimeter by adding the lengths of all sides of a shape. The lesson includes practice problems that challenge students to calculate the total perimeter for various figures, including one with dimensions of 10 inches and 12 inches, another needing missing lengths for a total perimeter of 19 ft., 7 ft., 4 ft., and 25 ft., and a final exercise involving a triangle with sides measuring 2 cm, 6 cm, and 3 cm.

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Understanding Perimeter: Definition and Calculation Methods

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  1. Finding Perimeter Lesson 10-1

  2. Perimeter • Definition: The distance around a figure • Perimeter is found by adding the lengths of the sides of a given object.

  3. Practice • What is the total perimeter of this figure? 10 in. 12 in

  4. Practice • What are the missing lengths and total perimeter? 19 ft. 7 ft. 4 ft. 25 ft.

  5. Practice • What is the total perimeter of this figure? 2 cm 6 cm 3 cm

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