Question

the length of a rectangle is twice its breadth what is the perimeter of the rectangle

Answer 1

let breadth =x
length=2x
therefore,
perimeter of rectangle =2 (l+b)
=2 (2x+x)
=2×3x
=6x

Answer 2

Let the breadth of the rectangle be x°   Then the length will be 2x Perimeter of rectangle = 2 (l+b)                                        = 2(x+2x)                                        = 2(3x)                                        = 6x Hence perimeter of rectangle is 6 times the length of breadth