Question

primetre of a rectangle is 300 cm if length of rectangle is 15cm​

Answer 1

☆ Correct Question ☆

The perimeter of the rectangle is 300 cm, if length of the rectangle is 15 cm, then find the breadth of the rectangle.

☆ Solution ☆

Given :-

• The perimeter of the rectangle is 300 cm.

• The length of the rectangle is 15 cm.

To Find :-

• The breadth of the rectangle.

Step-by-Step-Explaination :-

Let,

• The breadth of the rectangle be b .

As we know that :-

Perimeter of the rectangle = 2 ( length + breadth )

Where,

• Perimeter of the rectangle = 300 cm

• Length of the rectangle = 15 cm

• Breadth of the rectangle = b

Putting the respective value ,

300 = 2 ( 15 + b )

300 = 30 + 2b

2b = 300 - 30

2b = 270

b = 270/2

b = 135

Hence,

The breadth of the rectangle is 135 cm .

Answer 2

Given :-

• Perimeter of a rectangle is 300 cm if length of rectangle is 15 cm , then find the breadth of the rectangle.

Solving :-

• The perimeter of the rectangle is 300 cm.
• The length of the rectangle is 15 cm.

To find :-

• The breadth of the rectangle.

Solution :-

• The breadth of the rectangle be b.

★ We know that,

• Perimeter of the rectangle = 2 (length + breadth)

Where,

• Perimeter is the reactangle = 300 cm.

• Length of the reactangle = 15 cm.

• Breadth of the reactangle = b

Puting the values,

300 = 2 (15 + b)

300 = 30 + 2b

2b = 300 - 30

2b = 270

b = ${\bf{\frac{270}{2}}}$

b = 135

Hence,

• The breadth of the reactangle is$\large{\bf\underline{135~cm.}}$ $\huge{\bf\green{✓}}$