## Theorem 8.1 – Class 9 – A Diagonal of a parallelogram divides it into two congruent triangles

So students in the above picture you can see the Theorem 8.1 Class 9 is proved, which states that A Diagonal of a parallelogram divides it into two congruent triangles. Theorem 8.1 – Class 9 – A Diagonal of a parallelogram divides it into two congruent triangles