Question

the length of a rectangle is thrice of its breadth. the perimeter of rectangle is 256 metre. find the length and breadth of rectangle​

Answer 1

Answer:

let breadth be x m

so length = 3x

perimeter = 256 m

2(l+b). = 256

2(3x+x). =256

2×4x. =256

8x. =256

x. =256/8

x. =32

so breadth is 32 m

and length is =3x

=3×32

=96 m

Answer 2

Answer:

Let the breadth of the rectangle be x m.

Then, its length = (3×x) = 3x m

Atq,

$\: \: \: \: \: \: \: 2(3x + x) = 256 \\ = > 2 \times 4x = 256 \\ = > 8x = 256 \\ = > x = \frac{256}{8} \\ = > x = 32$

Hence, length = (3×32) m = 96 m

Breadth = 32 m

Some information are as follows :

☆ Perimeter of rectangle = 2 (L+b)

☆ Perimeter of square = 4× Side

☆ Perimeter of triangle = Sum of all three sides