Question

the length of a rectangle is 4cm more than its breadth.the perimeter of the rectangle is 40cm.find the length and breadth of the rectangle​

Answer 1

Answer:

8,12

Step-by-step explanation:

Answer 2

Solution

Given:-

• the length of a rectangle is 4cm more than its breadth.
• perimeter of the rectangle is 40cm.

Find :-

• Length & Breadth of rectangle

Explanation

Let,

• Length be = x cm
• Breadth be = y cm

Case 1.

==> x = y + 4

==> x - y = 4______________(1)

Case 2.

==> Perimeter of rectangle = 40

==> 2 × ( x + y) = 40

==> x + y = 40/2

==> x + y = 20________________(2)

Add equ(1) & equ(2)

==> 2x = 24

==> x = 24/2

==> x = 12 cm

Keep in equ (1)

==> 12 - y = 4

==> y = 12 - 4

==> y = 8 cm

Hence

• Length be (x) = 12 cm
• Breadth be (y) = 8 cm

_________________