Question

perimeter of a rectangle is 13 centimetre if it's width is 11/4cm find its length

Answer 1

hi
perimeter=2(l+b)
13 =2(l+11/4)
13=2l+22/4
13=2l+11/2
2l=13-11/2
2l=26-11 /2
2l=15/2
l=15/4

hope it helps