10.1 Notes - Circles and Circumference KEY

10.1- Circles and Circumference
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1. Name the circle.
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2. Name radii of the circle.
A
3. Name chords of the circle.
4. Name diameters of the circle.
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S. IfAB = 18 millimeters, find AR.
Y
6. If RY= 20 inches, find AR and AB.
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7. Is AB ÿ XY? Explain.
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Circumference:
Find the radius and circumference of a circle with a diameter of 16 ft.
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th a circumference of 20 cm.
Find the exact and rounded dtameter and the radi
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Find the exact and rounded diameter and the radius of a circle with a circumference of 52ÿ cm.
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Find the exact circumference of each circle using the given information:
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[0-0 = d,/t ÿ
....
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CIRCLE FACTS:
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A
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