Question

if the perimeter of rectangle is 180 cm and length is 16 cm find its breadth

Answer 1

p= 2(l+b)
180= 2 (16+ b)
180/2= 16+b
90= 16+b
b= 90-16= 74 cm will be the answer

Answer 2

perimeter of triangle is twice product of sum of its length and breadth

p=2{l+b}

p=180 cm , l=16 cm ,b=?

2{l+b}=180

2{16+b}=180

32+2b=180

2b=180-32

2b=148

b=74

hence the breadth is 74 cm