If the median to the base of a triangle is perpendicular to the base then triangle is isosceles.

If the straight line which bisects the vertical angle of a triangle is perpendicular to the base, the triangle is:

Prove by vector method that median to the base of an isoscels triangle is perpendicular to the base.

By vector method show that , median to the base of an isocales triangle is perpendicular to the base .

If the median drawn on the base of a triangle is half its base, the triangle will be:

Prove the following by vector method. Median to the base of an isosceles triangle is perpendicular to the base.

If the bisector of the vertical angle of a triangle bisects the base, prove that the triangle is isosceles.

If the bisector of the exterior vertical angle of a triangle be parallel to the base.Show that the triangle is isosceles.

If the bisector of the exterior vertical angle of a triangle be parallel to the base.Show that the triangle is isosceles.