Question

the perimeter of rectangle is 13cm and it's width is three 2/4 cm find its length

Answer 1

Width = 3 ( 2/4 ) => 14/4 cm


Perimeter = 13

2( 14/4 + length ) =13


14/2 + 2 length = 13


2 length = 13 - 7 [ 14/2 = 7 ]

2 length = 6

Length = 3 cm

Answer 2

Perimeter of rectangle is 2 (l+b).

Given-Width=3 2/4 cm= 14/4 cm= 7/2 cm.

Perimeter=13 cm.

2 ( l + 7/2 ) = 13

2l + 7 = 13

2l=13-7

2l= 6

l=3