The equation of the circle with centre (0, 0) and which cuts of a chord of length ‘6’ units on 3x + 4y – 20 = 0 is

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x2+y2=5

x2+y2=9

x2+y2=16

x2+y2=25

answer is D.

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Detailed Solution

3x+4y−20=0d=|−20|5=4,⇒r=42+32=5 ∴x2+y2=25

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