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circle
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radius
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diameter
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circumference
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milli
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centi
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deci
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deca
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hecto
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kilo
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area
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pi
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penta
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hepta
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octa
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hexa
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Use the words in the box to complete these sentences:
- ____________ is a prefix meaning five.
- ____________ is a prefix meaning one thousandth.
- ____________ is a prefix meaning eight.
- ____________ is a prefix meaning one tenth.
- ____________ is a prefix meaning one thousand.
- ____________ is a prefix meaning seven.
- ____________ is a prefix meaning ten.
- ____________ is a prefix meaning one hundred.
- ____________ is a prefix meaning six.
- ______________ is a prefix meaning one hundredth.
- A __________________ is a plane figure defined as all the points equidistant from one center point.
- I can compute the ____________ of a circle by multiplying the square of the radius by a decimal approximation of pi.
- The _________________________ of a circle is the distance around its edge. This is similar to the idea of the perimeter of a polygon.
- The __________________ of a circle is the distance from the center point of a circle to any point on its edge.
- The ______________________ of a circle is a line segment going through the center of the circle with its endpoints on the circle's edge.
- _________ is the ratio of a circle's circumference to its diameter, approximately equal to 3.14.
- Extra credit: What do I call the ratio of a jack-o-lantern's circumference to its diameter?
- Extra credit: What do I call the ratio of an igloos' circumference to its diameter?
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