It is the incentre.
The term that describes the point where at least three sides meet or intersect is called a "vertex." In geometry, a vertex is a corner point of a polygon or polyhedron, where two or more edges converge. In the case of a triangle, for example, it has three vertices.
The point where the three angle bisectors of a triangle intersect is called the incenter. This point is equidistant from all three sides of the triangle and serves as the center of the incircle, which is the circle inscribed within the triangle.
The point where the perpendicular bisectors of the sides of a triangle intersect is called the circumcenter. This point is equidistant from all three vertices of the triangle and serves as the center of the circumcircle, which is the circle that passes through all the vertices of the triangle.
Perpendicular lines that that intersect at 90 degrees are right angles.
It is the orthocentre.
incenter
Circumcenter
It is the incentre.
The term that describes the point where at least three sides meet or intersect is called a "vertex." In geometry, a vertex is a corner point of a polygon or polyhedron, where two or more edges converge. In the case of a triangle, for example, it has three vertices.
The point where the three angle bisectors of a triangle intersect is called the incenter. This point is equidistant from all three sides of the triangle and serves as the center of the incircle, which is the circle inscribed within the triangle.
The point where the perpendicular bisectors of the sides of a triangle intersect is called the circumcenter. This point is equidistant from all three vertices of the triangle and serves as the center of the circumcircle, which is the circle that passes through all the vertices of the triangle.
It is the circumcentre, the unique point from which you can draw a circle (the circumscribed circle) which passes through all three vertices.
Perpendicular lines that that intersect at 90 degrees are right angles.
The point where the three medians of a triangle intersect is called the centroid. The centroid is the center of mass of the triangle and divides each median into a ratio of 2:1, with the longer segment being closer to the vertex. It is also a point of balance for the triangle.
It is the circumcentre, the unique point from which you can draw a circle (the circumscribed circle) which passes through all three vertices.
Point is not an undefined term. It can be defined as a mathematically precise location, or as the place where two lines intersect.