Question

Do Activity ( To verify that opposite sides of a parallelogram are of equal length )​

Answer 1

Answer:

what type of activity do we have to do

Answer 2

Answer:

Step-by-step explanation:

Given: ABCD is a parallelogram.

To Prove: The opposite sides are equal, AB=CD, and BC=AD.

Proof: In parallelogram ABCB, compare triangles ABC and CDA. In these triangles AC = CA (common sides). Also ∠BAC =∠DCA (alternate interior angles), and ∠BCA = ∠DAC (alternate interior angles). Hence by the ASA criterion, both the triangles are congruent and the corresponding sides are equal.  Therefore we have AB = CD, and BC = AD.