Question

plz answer fast because I have to send this ans to my friend​

Answer 1

Answer:

Let, The angles are X , Y , Z

Then , Given: X= Y+Z

Need to prove : Rectangle XYZ is right angled

Proof : X+Y+Z = 180

or , X+X = 180

or, 2X = 180

or , X =90 (Proved)