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Circle
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How do you find the area of circle?
A = Pi times the radius squared
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What the value of Pi?
3.14
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10 cm radius, find the area.
314 square cm.
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What is the measure all the way around a circle?
Circumference
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Diameter = 10, Radius = ?
5
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How do you find the radius if you have the diameter?
Diameter divide by 2
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Radius = 7, Diameter = ?
14
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14 cm radius, find the area.
616 sqaure cm.
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What is the circumference of a donut with a 21 cm radius?
132 cm
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What is circumference of a circle with a 2 cm diameter?
6.28 cm
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6 cm diameter, find the area.
28.26 square cm.
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How to do you find the diameter if you have the radius?
2 times radius
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What is the radius?
5 cm
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What is circumference of a wheel with a 7 cm radius?
44 cm
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What is another word for circumference?
Perimeter
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7 cm diameter, find the area.
154 square cm.
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How do you find the circumfernce of a circle?
C = Pi x d
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