geometry warm up. 10-6 circles and arcs objective: to find the circumference and arc length
TRANSCRIPT
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Geometry Warm Up
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10-6 CIRCLES AND ARCSObjective: To find the circumference and arc length.
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Circumference• Circumference: the distance around the circle• Pi: ratio of the circumference of a circle to it’s diameter
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pi• The number pi is irrational
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Coplanar circles• Concentric circles: coplanar circles that have the same
center.
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Problem 1
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Try with a partner
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Arc Length
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Problem 2• What is the length of each arc shown in red? • Leave your answer in terms of
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Problem 3• What is the length of a semicircle with radius 1.3 m? leave
your answer in terms of .
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TOO
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Homework• Pg. 654 # 24 – 36, 52 – 54