Question

The length and the breadth are in the ratio 3 : 2. If its perimeter is 30 cm, find its breadth

Answer 1

Answer:

Answer. Let length be 3x and breadth be 2x. The breadth = 2x = 6cm.

Step-by-step explanation:

Perimeter of rectangle=30

2(3x+2x)=30

2(5x)= 30

10x=30

x=30÷10

x=3

breadth=2x

=2(3)

=6cm

PLZ MARK AS BRAINLIEST

Answer 2

$\bf\red{QuestioN:-}$

The length and the breadth of a rectangle are in the ratio 3 : 2 . If its perimeter is 30 cm, find its breadth

.

$\bf\green{AnsweR:-}$

Given :

The ratios of length and breadth of the rectangle ,

• Length = 3x

• Breadth = 2x

Perimeter of the rectangle = 30 cm.

To Find :

The breadth of the rectangle.

Solution :

The ratios of the length and breadth of the rectangle is already given as,

→ Length = 3x

→ Breadth = 2x

Perimeter is also already given.

⇒ Perimeter = 30 cm

As we know,

$\huge{\boxed{\bf{Perimeter = 2 ( L+B )}}}}}}$

That is,

Perimeter = 2 ( 3x +2x )

[ °•° length = 3x & breadth = 2x ]

⇒ Perimeter = 2 (3x + 2x)

⇒ 30 cm = 10x

$\longrightarrow\bf{\dfrac{30}{10}=x}\\\\\\\\\bf\longrightarrow{x=3}$

Then,

The value of x = 3 cm.

Then the value of breadth = 2 x

That is ,

2x = 2 × 3 = 6 cm.

The required answer for your question is 6 cm.

All Done !! ☺