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The radius of a circle is the distance from the center of a circle to any point on the circle. If you place two radii end-to-end in a circle, you would have the same length as one diameter. Thus, the diameter of a circle is twice as long as the radius.
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www.mathgoodies.com/lessons/vol2/circumference.html
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In the last lesson, we learned that the formula for circumference of a circle is: . For simplicity, we use = 3.14. We know from the last lesson that the diameter of a circle is twice as long as the radius. This relationship is expressed in the ... Example 1: The radius of a circle is 3 inches. What is the area?
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www.mathgoodies.com/lessons/vol2/circle_area.html
www.mathgoodies.com/lessons/vol2/circle_area.html
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To determine the radius of a circle, you need to half the length of the diameter. For example, if the diameter is 10 inches, the radius is 5 inches.
http://answers.ask.com/Science/Other/how_do_i_determine...
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The Radius method of the Circle and Arcs command enables you to create a circle or arc based on its radius or diameter (circles only) and center point, or a circle or circular arc based on ... Insert a circle given radius ... When creating arcs using this method, the through points also determine the endpoints of the arc.
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thinkcare.think3.com/thinkcare/english/geometry/gm_03/g...
thinkcare.think3.com/thinkcare/english/geometry/gm_03/gm_03_03.htm
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The answer depends on what information you are given. If you know the circumference, then divide by Pi and that is the diameter. Half of the diameter is the radius. If you don't know anything about the circle, you would need to measure and ...
http://wiki.answers.com/Q/How_do_you_determine_the_leng...
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Question: Find the Radius of the following circle with the center at, arc AB = 22 cm, OD = 38cm, DE = 28cm, = 34 . ... Step 3: Use formula shown: Find the radius. ... The radius of the circle is 52.3 c...
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www.cbv.ns.ca/mathhelp/P48.htm
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origin: the center of the circle; pi ( ): A number, 3.141592..., equal to (the circumference) / (the diameter) of any circle. radius: distance from center of circle to any point on it. sector: is like a slice of pie (a circle wedge).
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math2.org/math/geometry/circles.htm
math2.org/math/geometry/circles.htm
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IN MATH: 1. n. a line segment having the circle's (or sphere's) center as one endpoint and a point on the circle (or sphere) as the other endpoint. 2. n. distance from the center of the circle (or sphere) to any point on the circle (or sphere). ... 1. Determine the radius if the diameter is 5 cm.
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www.mathnstuff.com/math/spoken/here/1words/r/r5.htm
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An interactive math lesson about finding the fourth angle of a quadrilateral ... Practice Your Spelling List ... States of the United States...
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www.aaamath.com/geo612-circumference-circle.html
www.aaamath.com/geo612-circumference-circle.html
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