Question

If the perimeter of a rectangle is 36 cm and its length is 9 cm Find its breath

Answer 1

Length of rectangle = 9 cm

Perimeter = 36 cm

=> 2 (Length +Width) = 36

=> 2(9+ Width) = 36

=> Width + 9 = 18

=> Width = 9 cm

Answer 2

perimeter of rectangle = 2 (l+b)
                               36 = 2 (9+b)
                               18 = 9+b
                                b = 18-9
                                b = 9 cm