Question

Perimeter of Rectangle ​

Answer 1

Answer:

2 × ( l+b)

Step-by-step explanation:

Perimeter of Rectangle = 2 × (l+b)

For example = 2 × ( 3+9)cm

= 2 × 12 = 24cm

Answer 2

Answer:

2x {L+b} Where L means Length and b means Breadth

Explanation:

Since the perimeter is equal to the sum of all the sides of the polygon. Hence, in the case of a rectangle, the perimeter (P) is;

P = sum of all its four sides

P = L + b + L+ b   (Opposite sides of rectangle are equal)

P = 2(L + b)

Hence, derived.

Therefore,

Perimeter of a rectangle = 2(Length + Width) square units