Question

perimeter of a rectangle is 105/7 m. if the length is 30/7 m, find its breadth

Answer 1

length of a rectangle=30/7 m
perimeter of a rectangle=105/7
2(l+b)=105/7
30/7+b=105/14
b=105/14-30/7=45/14
Hence breadth of rectangle=45/14m.

Answer 2

Given, length of the rectangle = 30/7 m

Pereimter = 105/7m

2(l+b) = 105/7

2(30/7 + b) = 105/7

60/7 + 2b = 105/7

2b = 105/7 - 60/7

2b = 45/7

b = 45/14 m.

:)