Question

The perimeter of a rectangle is 120 cm. If the breadth is 35 cm, find its length and area​

Answer 1

SOLUTION

GIVEN

• The perimeter of a rectangle is 120 cm

• The breadth is 35 cm

TO DETERMINE

The length and area

EVALUATION

Let length = L cm

Now it is given that perimeter of a rectangle is 120 cm

So by the given condition

$\sf{2(L + 35) = 120}$

$\sf{ \implies \: (L + 35) = 60}$

$\sf{ \implies \: L = 25}$

Hence the required length = 25 cm

Area of the rectangle

= 35 × 25 cm²

= 875 cm²

N.B : For a rectangle Length > Breadth

So in the question length = 35 cm

Accordingly breadth = 25 cm

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. A rectangle is made from a 20 cm long thin wire .If the breadth of the rectangle is 3 cm , then what is the length of th...

https://brainly.in/question/34792847

2. Parallelogram and a triangle have a common base. If area of the triangle is 20cm^2 then find area of a parallelogram

https://brainly.in/question/36155817

Answer 2

Given:

The perimeter of a rectangle is 120 cm. If the breadth is 35 cm

To find:

its length and area​

Solution:

Perimeter = 120 cm, breadth = 35 cm

Finding the length:

The perimeter of a rectangle = 2(length + breadth)

120 = 2(length + 35)

120 = 2length + 70

2length = 120 - 70

2length = 50

length = 50/2

length = 25cm

Finding the Area:

Area of a rectangle = length x breadth

=> 25 x 35

=> 875$cm^{2}$

Hence, the length is 25cm and Area is 875$cm^{2}$