Question

the length of a rectangle whose perimeter is 64 cm and breadth is 20 cm

Answer 1

Answer:

length of rectangle = (64- 2×20)/2= 12cm

Answer 2

$\sf\Large\purple{ Ur \: Answer \: Mate:-}$

Let the Length of Rectangle be x

Given :-

Perimeter = 64cm

Breadth = 20cm

Formula Used :-

$\sf\fbox\pink{Perimeter \: = \: 2 × ( Length + Breadth)}$

Putting the values :-

⇒ 64cm = 2 × (x + 20)

⇒ 64cm = 2x + 40

⇒ 2x = 64 - 40

⇒ x = 24/2

⇒ x = 12cm

$\sf\fbox\pink{Length \: Of \: The \: Rectangle \: = \: 12 cm}$