Question

If Twg
Two adjacent angle of a
parallelogram are equal then all
angle of a parallelogram measuse
90 degrees​

Answer 1

Answer:

90+90=180 is the answer of your question

Answer 2

Answer:

refer to the below explanation :

Step-by-step explanation:

∠B + ∠C = 180°, ∠C + ∠D = 180° and ∠A + ∠B = 180°. Therefore, the sum of any two adjacent angles of a parallelogram is equal to 180°. ... From the above theorem, it can be derived that if one angle of a parallelogram is equal to 90 degrees, then all four angles are equal to 90 degrees.