If the length of the longest chord of a certain circle is 14, what is the radius of that certain circle?
Choose one.
A) 2.5	B) 5	C) 10	D) 7	E) 9
Longest chord of a circle is the diameter of the circle   diameter = 2 * radius   If diameter of the circle is given as 14 = 2 * 7   so radius of the circle = 7   correct answer - 7
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If the length of the longest chord of a certain circle is 14, what is the radius of that certain circle?