Area of Parallelogram Opposite Angles of Parallelogram Adjacent Angles of Parallelogram Diagonal Of Parallelogram Difference & Similarity between Rectangle & Parallelogram Difference & Similarity between Square & Parallelogram Difference & Similarity between Square, Rectangle & Parallelogram Properties of Parallelogram
Before you study what is Parallelogram, you are advised to read:
What is a Quadrilateral ?
What are Parallel Lines ?
Definition of Parallelogram : A parallelogram is a quadrilateral in which opposite sides are equal and parallel to each other.
Example 1: In the following diagram of Quadrilateral ABCD
AB is parallel to DC
AD is parallel to BC
AB = DC = 7 cm
AD = BC = 11 cm
Hence, we can say Quadrilateral ABCD is a parallelogram.