Question

The perimeter of a rectangle is 20 CM. the breadth of the rectangle is 8 cm what it it's length ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Question:-

The perimeter of a rectangle is 20 CM. the breadth of the rectangle is 8 cm what it it's length

Answer:-

• The length of rectangle is 2 cm.

To find:-

• Length of rectangle

Solution:-

• Perimeter = 20 cm
• Breadth of rectangle = 8 cm

As we know,

$\large{ \boxed{ \mathfrak{perimeter = 2(l + b)}}}$

Where,

• l = length of rectangle
• b = breadth of rectangle

Let,

• Length of rectangle = x

According to question,

$\large{ \tt : \implies \: \: \: \: \: \: \: \: 2(x + 8) = 20}$

$\large{ \tt : \implies \: \: \: \: \: \: \: \: x + 8 = \frac{20}{2} }$

$\large{ \tt : \implies \: \: \: \: \: \: \: \: x + 8 = 10}$

$\large{ \tt : \implies \: \: \: \: \: \: \: \: x = 10 - 8}$

$\large{ \tt : \implies \: \: \: \: \: \: \: \: x = 2}$

Hence,

The length of rectangle is 2 cm.