The point A(9,0),B(9,6)C(-9,6)&D(-9,0)are the vertices of A

1.	The point A(9,0),B(9,6)C(-9,6)&D(-9,0)are the vertices of A
Answer» AB=square root of((9-9)^2+(6-0)^2)=6BC=square root of((9-(-9))^2+(6-6)^2)=square root of (18^2+0)=18CD=square root of((-9-(-9))^2+(6-0)^2)=square root of(0+6^2)=6AD=square root of((9-(-9))^2+(0-0)^2)=square root of(18^2+0)=18Since, AB=CD AND BC=ADTHEREFORE, A,B,C,D ARE THE VERTICES OF A RECTANGLE.

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