Prove that a line drawn from the vertex of a triangle to its base is bisected by the line joining the mid points of the remaining two sides of the triangle.

Prove that any line segment drawn from the vertex of a trianlge to the base is bisected by the line segment joining the mid points of the other sides of the triangle.

Prove that the straight line joining the vertex of an isosceles triangle to any point in the base is smaller than either of the equal sides of the triangle.

Prove by the theorem of Thales that the third side of a triangle is parallel to the line segment obtained by joining the mid-points of any two sides of the triangle and is half in length of its third side.

prove that the area of a triangle is four times the area of the triangle formed by joining the mid-points of its sides.

prove that the area of a triangle is four times the area of the triangle formed by joining the mid-points of its sides.

Prove that the line joining the mid-points of the two sides of a triangle is parallel to the third side.

Prove that the line joining the mid-points of the two sides of a triangle is parallel to the third side.

Prove that the line joining the middle points of the two sides of a triangle is parallel to the third side.

The line joining the mid-points of two sides of a triangle is parallel to the third side.