Show that the diagonals of a rhombus divide it into four congruent triangles.

Show that the diagonals of a rhombus divide it four congruent triangles.

Show that the diagonals of a parallelogram divide it into four triangles of equal area.

Using vector method show that the diagonals of a rhombus are at right angles .

Prove that two diagonals of a parallelogram divides it into four triangles of equal areas.

In DeltaABC, D, E and F are the midpoints of sides AB, BC and CA respectively. Show that DeltaABC is divided into four congruent triangles, when the three midpoints are joined to each other. (ΔDEF is called medial triangle)

Show that the median of a triangle divides it into two triangles of equal areas.

prove that the diagonals of a rhombus are perpendicular to each other.

Prove that the points (0,0),(0,10),(8,16)and (8,6)are the vertices of a rhombus , find the area of the rhombus. Show also that the diogonal of the rhombus intersect at right angle

What is the length of the other diagonal of a rhombus , if one its diagonal is 12 cm and the sides of it is 10 cm.

Prove that if each diagonal of a quadrilateral bisects it into two triangles of equal areas, then it is a parallelogram.