The radius of the circle passing through the points (2,3),(2,7) and (5,3) is
A
5
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B
4
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C
52
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D
2
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E
√5
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Solution
The correct option is B52 Let the given points A(2,3),B(5,3) and C(2,7) Diameters of circle is distance between B(5,3) and C(2,7) d=√(2−5)2+(7−3)2=√9+16 d=√25=5 ∴ Radius =d2=52