Question 280079
1.50L*2w=30
l>w
original length and width are (5 and 2) or (10 and 1)
testing 5 and 2
7.5 and 4
7.5*2+2*4=15+8=23 cm perimeter

and 10 and 1
15 and 2
15*2+2*2=34 cm perimeter
34> 23 so 34 cm is the largest possible perimeter with integer sides in the original.