Question

If the area of the rectangle is 84 sq. cm and it's length is 12cm then find the perimeter of the rectangle​

Answer 1

Given :-

• Shape = Rectangle
• Area of Rectangle = 84cm²
• Length of the Rectangle = 12cm

To Find :-

• Perimeter of the Rectangle.

Solution :-

➞ Area of Rectangle = Length × Breadth

➞ 84 = 12 × Breadth

➞ 84 ÷ 12 = Breadth

➞ 7cm = Breadth

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➞ Perimeter = 2( L + B )

➞ Perimeter = 2( 12 + 7 )

➞ Perimeter = 2 × 19

➞ Perimeter = 38cm

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Therefore, Perimeter of the Rectangle is 38cm

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★ Additional Info :

Formulas Related to Rectangle :

• Perimeter of Rectangle = 2( l + b)
• Area = Length × Breadth
• Length = Area / Breadth
• Breadth = Area / Length
• Diagonal = √(l)² + (b)²

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