1)H(3,4) and C(1,2) are orthocenter and circumcentre of triangle PQR and equation of PQ is x-y+7=0 then
a) equation of circumcircle (x-1)2+(y-2)2=80
b) equation of circumcircle (x-1)2+(y-2)2=70
c) centroid is (5/3,8/3)
d) circumradius is v70
Vatsal Koradia , 14 Years ago
Grade 11