Question

perimetre=56 length =20 find the breath​

Answer 1

Given,

Perimeter = 56 units , length = 20 units.

we know that,

perimeter = 2(length + breadth)

let the breadth be x,

According to the question,

$2(20 + x) = 56 \\ 40 + 2x = 56 \\ 2x = 56 - 40 \\ 2x = 16 \\ x = \frac{16}{2} \\ x= 8 \: units$

Therefore,the breadth is 8 units :)

Answer 2

Given:-

• Perimeter of a rectangle is 56 units.
• Length of a rectangle is 20 units.

⠀

To find:-

• Breadth of a rectangle.

⠀

Solution:-

Here,

• Perimeter = 56 units
• Length (l) = 20 units

⠀

Let,

• the breadth of a rectangle be b.

⠀

According to the question

We know that,

⇛ Perimeter of rectangle = 2(length + breadth)

⠀

→ 56 = 2(l + b)

→ 56 = 2(20 + b)

→ 56 = 40 + 2b

→ 56 - 40 = 2b

→ 16 = 2b

→ b = 16/2

→ b = 8 units

⠀

Hence,

• the breadth of a rectangle is 8 units.