Answer:
Step-by-step explanation:
if the breadth is 5cm, then you divide 30/5 to get your length since it's length times breadth to get the area, so 6cm for the length
and then it's 2b plus 2l to get your perimeter so
2(5)+2(6)=p
10 plus 12 equals p
22 is your perimeter, 6 is your length
