this is a really easy problem
at the orthocentre
just go to the basics of radical centre (intersection of racical axes)
and apply a bit geometry
The radical center of three circles described on three sides of triangle as diameeter is...............
this is a really easy problem
at the orthocentre
just go to the basics of radical centre (intersection of racical axes)
and apply a bit geometry
ok
see the figure
BP is one of those radical axes
As BP is common to bothe the circles
and BPC and APB both are semicircles
hence we get
√APB=90
and
√BPC=90
hence √APC=90+90=180
hence APC is a straight line
but there exists only one straight line between A and C
(the side AC)
hence BP is perpendicular to AC
thuse each radical axis is an altitude
hence the radical centre is the meeting point of the altitudes i.e circumcentre