Question

The area of a rectangle is 30 centimeter squared .If the length is 6cm Calculate its Perimeter

Answer 1

Given

• Area of Rectangle ⇒ 30 cm²
• Length ⇒ 6 cm

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To Find

• Perimeter of Rectangle

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Solution

Area of Given Rectangle ⇒ 30 cm²

Area of Rectangle ⇒ Length × Breadth

Length ⇒ 6 cm

Breadth ⇒ x cm

Breadth ⇒ Area of Rectangle ÷ Length

⇒ 30 ÷ 6

⇒ 5 cm

∴ The breadth of the rectangle is 5 cm.

Now let's find the perimeter of the rectangle.

Perimeter of Rectangle ⇒ 2 (Length × Breadth)

Length ⇒ 6 cm

Breadth ⇒ 5 cm

⇒ 2 (6 + 5)

⇒ 2 (11)

⇒ 22 cm

∴ The perimeter of this rectangle is 22 cm.

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Answer 2

Question :

To find: Perimeter of rectangle

Answer :

• Given :

■ Length of rectangle : 6cm

■ Breadth of rectangle : ??

■ Area of rectangle : 30 cm

${\boxed{\bf{\underline{area \: of \: rectangle = l \times b}}}}$

so , to find breadth , breadth be x,

$\longrightarrow \sf \: 6 \times x = 30$

$\longrightarrow\sf \: x = \frac{30}{6} = 5$

$\longrightarrow\sf \: x = 5$

$\bf \: breadth = 5 \: cm$

Breadth of rectangle is 5cm

• To find Perimeter of rectangle :

${\boxed{\underline{\bf {Perimeter \: of \: rectangle = 2 \times (l + b)}}}}$

$\longrightarrow\sf \: 2 \times ( 6 + 5)$

$\longrightarrow\sf \: 2 \times 11$

$\longrightarrow\sf22 \: cm$

$\bf \: Perimeter \: = 22 \: cm$

So, perimeter of rectangle is 22 cm.