Printing dimensions problem

I am having problems printing correct dimensions. I am using CD 2018 with a Brother printer.

I draw a rectangle in the middle of an 8.5 x 11.0 page. The rectangle is exactly 1.25 x 1.50 inches. However it prints 1.5 x 2.00 inches.

Can anyone please give me some idea why this is happening?

Thanks in advance.