Altitude
Altitude
Circumcenter
It is the circumcentre.
Mutually Perpendicular
Altitude
It is the circumcentre, the unique point from which you can draw a circle (the circumscribed circle) which passes through all three vertices.
altitude
It is the circumcentre, the unique point from which you can draw a circle (the circumscribed circle) which passes through all three vertices.
The description given fits that of a right angle triangle
right triangle
Perpendicular.
It is the orthocentre.