Question

ए रैक्टेंगुलर शीट ऑफ ट्वेल्थ 12 whole 1/2cm long and 10 whole 2/3cm wide.find it perimeter.


in a class of 40 student
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Answer 1

Given :

$\bullet\:\:\textsf{ Length of the reactangle = \textbf{12 ½ cm.}}\\\bullet\:\:\textsf{Breadth of the reactangle = \textbf{10 ⅔ cm.}}</p><p>$

Solution :

$\underline{ \large \pink{ \mathscr{\bigstar\:A \bf{ccording} \: to \: \mathscr {Q} \bf{uestion} ....}}}$

➨ Perimeter = 2 × [Length × Breadth]

➨ Perimeter = 2 × [12 ½ × 10 ⅔]

➨ Perimeter = 2 × [25/2 × 32/3]

➨ Perimeter = 2 × [75 + 64/6]

➨ Perimeter = 2 × [139/6]

➨ Perimeter = 139/3

➨ Perimeter = 46 ⅓ cm

Therefore, Perimeter of reactangle is 46 ⅓ cm.

Answer 2

Answer:

Perimeter of the rectangular sheet is 46⅓ cm.

Step-by-step explanation:

Given :-

• A rectangular sheet of paper is 12½ cm long and 10⅔ cm wide.

To find :-

• Perimeter of the rectangular sheet.

Solution :-

Formula used :

${\boxed{\sf{Perimeter\:of\: rectangle=2(Length+Width)}}}$

Perimeter of the rectangular sheet,

= 2 (12½ + 10⅔) cm

= 2 (25/2 + 32/3) cm

= 2 [(75+64)/6] cm

= 2 × (139/6) cm

= 139/3 cm

= 46⅓ cm

Therefore, the perimeter of the rectangular sheet is 46⅓ cm.

___________________

Additional information :-

★ Area of rectangle = length× breadth

★ Diagonal of rectangle = √(length ² + breadth ²)

★ Perimeter of square = 4 × side

★ Area of square = side²