Statement - 1 : If a is constant and two chords of lengths a2ā1 and 3(a+1) of a circle bisect each other, then radius of the circle is 152 Statement - 2 : Two chords of a circle bisect each other only when both are the diameters of the circle.
A
Statement-1 is true, Statement-2 is true. Statement-2 is a correct explanation for Statement-1
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B
Statement-1 is true, Statement-2 is true. Statement-2 is not a correct explanation for Statement-1
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C
Statement-1 is true, Statement-2 is false
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D
Statement-1 is false, Statement-2 is true
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Solution
The correct option is A Statement-1 is true, Statement-2 is true. Statement-2 is a correct explanation for Statement-1 Both chords are diameters ⇒a2−1=3(a+1) ⇒ a = 4 or -1 a = -1 is not possible ∴a=4 Radius of circle 3(a+1)2=152