Question

Please solve the question

Answer 1

c is the orthocentre of abc
so oc=ac=cb
6.5=ac=cb
ab=6.5+6.5=13
as it is right angled triangle we can apply pythogorous theorm
so,


${13}^{2} = {12}^{2} + x$
169=144+x
169-144=x
25=x
OB =25cm
area of ABC =1/2xOAxOB
=1/2x12x25
=6x25=150cm2