AB=r,AD=2r
CD=rsin60∘=23r
⇒12+22∣0+0−3∣=23r⇒r=253⇒r2=512
If the length of the chord of the circle, x2+y2=r2(r>0) along the line, y−2x=3 is r, then r2 is equal to:
Held on 5 Sept 2020 · Verified 6 Jul 2026.
59
12
524
512
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