The orthocentre of a triangle is the ___________.
point of intersection of all the angle bisectors.
point of intersection of all the altitudes from each of the vertices.
point of intersection of the medians.
point of intersection of all the perpendicular bisectors.
The orthocentre of a triangle is the point of intersection of the altitudes of the triangle.
Point of intersection of all the angle bisector in a triangle is known as __________ .