Question 728836
Let width of rect. Be x

length=3x+3  

Perimeter of rect.=2(length+breadth)

46=2[x+(3x+3)]

46=2x+6x+6

46=8x+6

46-6=8x

40=8x

x=40/8=5

breadth=5 cm & length=3*5+3=18

46=2[5+(5*3+3)

46=2[5+18]

46=2*23