Answer:
9cm
Step-by-step explanation:
to solve first divide the total perimiter (40cm) by 4
this would allow 10cm for each side to allow the longer side to be 2 cm longer than the height we must subtract 1cm (for a total of 2cm) from each side of the rectangle, this would result in the shorter side having a length of 9cm
40=2 x (9+11)
