Question

the perimeter of rectangle is13cm and its breadth is 2 3/4

Answer 1

LET THE LENGTH BE x.
AND BREADTH = 23/4
SO, A/Q,
PERIMETER = 2(L+B)
$13cm = 2(x + \frac{23}{4} cm) \\ = > \frac{13}{2} cm = x + \frac{23}{4} cm \\ = > \frac{13}{2} cm - \frac{23}{4} cm = x \\ = > x = \frac{2(13cm) -23cm }{4} \\ = > x = \frac{26cm - 24cm}{4} \\ = > x = \frac{2}{4} cm = \frac{1}{2} cm$
HENCE, LENGTH = (1/2)cm

THERE YOU GO!!!.....