Question

if length of rectangle is 56 cm and perimeter of rectangle is three times the breadth find its breadth and perimeter​

Answer 1

Answer:

perimeter of the rectangle=2(l+b)

length=56cm

breadth=x

perimeter=3x

2(56+x)=3x

112+2x=3x

112=3x-2x

112=x

breadth=112

perimeter=2(56+112)=112+224

=336

Answer 2

let breadth is X

perimeter 3x

length 56cm

56+X=3x

56=3x-x

56=2x

56/2=X

28=X

breadth is 28cm

perimeter is 3x28 is 74cm