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Review: Perimeter & Circumference
Math 8
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Brainstorm Paul wants to make a sandbox out of logs. How can he figure out how many logs he needs?
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Perimeter "peri" - around, "meter" - measure
The distance around a figure. To find the perimeter = ADD UP ALL THE LENGTHS OF ALL THE SIDES.
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Estimate then calculate the perimeter of the garden
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Calculate the perimeter
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Calculate the perimeter
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Calculate the perimeter
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Circumference C = πd C = 2πr π= 3.14
Is the distance (perimeter) around a circle. Formula: C = πd C = 2πr π= 3.14
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The diameter of a Ferris Wheel is 55m. What is the circumference?
C = πd = 3.14 x 55m = 172.7mm
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The radius of a pizza is 3. 5inches
The radius of a pizza is 3.5inches. What is the circumference of the pizza? C = 2πr = 2 x 3.14 x 3.5 = inches
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Practice Complete: Perimeter – Mathpower 8
Circumference of a Circle – Mathpower 8 Perimeter & Circumference
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