Question

perimeter of rectangle 180cm find length and breadth.

Answer 1

Hii. Bro you didn't write the full question.This information is not sufficient to find out the dimensions of the rectangle.

Answer 2

perimeter = 180cm 
p= 2[l+b]
180= 2x [l+b]
180/2 = l+b
90= l+b
to find the length and breadth some hint might be given in the question for the meantime the sum of both length and breadth is 90cm.