n. 1 a straight line from the center to the perimeter of a circle; 2 the outer and slightly shorter of the two bones of the human forearm; 3 a field or range of influence
The radius of a circle is half the diameter.
The radius of a circle is half the diameter.
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How are diameter, circumference and radius related in real life math terminology?
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half the diameter; r; line from center to perimeter of a circle
perimeter
3 syllables
ra-di-us
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