Question

perimeter of a rectangle is equals to the sum of twice the length and the breadth​

Answer 1

we know that perimeter of rectangle means the sum of all sides of rectangle

let us consider length as L and breadth as B

L+L+B+B = perimeter

2L+2B = perimeter

2(L+B) = perimeter

perimeter = 2(L+B)

hence proved.

HOPE IT HELPS!!