180
since it's a rectangle it wil have 4 sides hence to find breadth we need to make it a square so all 4 sides will be equal hence 54 minus 3 times 2 and the length of the rectangle is 3 cm longer than the breadth of the rectangle making the perimeter into 48 after the equation 48 divide by 4 equal 12 . so now we know that the breadth of the rectangle is 12 we can add 3 to 12 to find the length of the rectangle and use 12 times 15 to find the area of the rectangle