)≡(1,−2) L1 is passing through A ⇒−4−6+K1=0 ⇒K1=10 L2 is passing through B ⇒12+18+K2=0 ⇒K2=−30 Equation of L1:4x−3y+10=0 Equation of L2=4x−3y−30=0 Diameter of circle =|‌
10+30
√42+(−3)2
|=8 ⇒ Radius =4 Equation of circle (x−1)2+(y+2)2=16