The centre of gravity of a triangle is at the point where three A. Medians of the triangle meet B. Perpendicular bisectors of the sides of the triangle meet C. Bisectors of the angle of the triangle meet D. None of these

The correct answer is: The centre of gravity of a triangle is at the point where three medians of the triangle meet.

A median of a triangle is a line segment that joins a vertex of the triangle to the midpoint of the opposite side. The three medians of a triangle always intersect at a point called the centroid, which is also the center of gravity of the triangle.

The centroid divides each median in a 2:1 ratio, with the longer part of the median being closer to the vertex. The centroid is also located at a 2:1 ratio from each vertex to the opposite side.

The centroid of a triangle has many interesting properties. For example, it is always located inside the triangle, and it is the point of intersection of the three medians. The centroid can also be used to calculate the area of a triangle.

The centroid of a triangle is an important geometric concept that has many applications in physics, engineering, and architecture.