Question

Elle drew rectangle that was 3 units wide and 4 units long drew different rectangle that has same permiter but a different area

Answer 1

The perimeter is 14. The area is twelve. You could do 6*1, because 6*1 is six, but 6+6+1+1=14. 

Answer 2

Perimeter = 2(l + b) = 2(3 + 4) = 14 cm

So, different possible values of l and b with different area
(1,6) (2,5) (5,2) (6,1)