Find all sides of rectangle having integral sides whose area is numerically equal to perimeter?

I also want the mathematical proof

Printable View

- Sep 30th 2009, 06:34 AManshulbshahPlease help....tricky question
Find all sides of rectangle having integral sides whose area is numerically equal to perimeter?

I also want the mathematical proof - Sep 30th 2009, 06:53 AMred_dog
Let a and b be the sides of the rectangle. Then

Then must be a positive divisor of 4.

Take all possible cases: b-2=1, b-2=2, b-2=4. Find b and then find a.