Question

the perimeter of a rectangle is13cm and its width is 2•75 cm find its length

Answer 1

Perimeter of a rectangle = 13cm

2(length + breadth) =13

2(length+2.5) =13

Length + 2.5= 13/2

Length +2.5= 6.5

Length= 6.5-2.5

. '. Length = 4cm

Hope it helps u

Answer 2

perimeter of a rectangle = 2(l+b)

                                         = 2(l+2.75)

                                          = 2 *l + 2.75 = 13

                                          = l+2.75 = 13/2

                                           = l + 2.75 = 6.5

                                            = l= 6.5-2.75

                                             = l= 3.75

length= 3.75 cm