The diagonal of a parallelogram divides it into two congruent triangles.
True
False
ΔABD and ΔCDB
AB = CD (Opposite sides of a parallelogram)
AD = CB (Opposite sides of a parallelogram)
BD = DB (Common)
So, ΔABD ≅ ΔCDB (By SSS congruence condition)
Prove that a diagonal of a parallelogram divides it into two congruent triangles.
Given: Area of parallelogram = Base × Height
Statement 1: A diagonal of a parallelogram divides it into two congruent triangles.
Statement 2: Areas of two congruent triangles are exactly equal.