Question

A rectangular sheet of paper is 4/7 cm long and 6/9 cm wide. Find it's perimeter .​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Given :

• Length of sheet = 4/7 cm
• Breadth of sheet = 6/9 cm

To Find :

• Perimeter of the Sheet.

Formula :

• Perimeter = 2(Length + Breadth)

Solution :

⟶⠀Perimeter = 2(Length + Breadth)

• putting the values

⟶⠀Perimeter = 2(4/7 + 6/9)

• Taking the LCM of denominator

⟶⠀Perimeter = 2(4 × 9/7 × 9 + 6 × 7/9 × 7)

• solving it

⟶⠀Perimeter = 2(36/63 + 42/63)

• taking the denominator as common.

⟶⠀Perimeter = 2(36 + 42/63)

• adding the numerator

⟶⠀Perimeter = 2(78/63)

• solving the fraction.

⟶⠀Perimeter = 2(1.23)

• opening the bracket.

⟶⠀Perimeter = 2 × 1.23

• getting the answer

⟶⠀Perimeter = 2.46cm

Therefore :

• Perimeter of the Sheet is 2.46cm

Knowledge Zone :

What is Rectangle ?

• Rectangle is a shape with similar opposite sides, only 2 sides are equal. With 4 equal sides shape is called as square.

Properties :

Properties of rectangle are :

• Opposite sides are equal and parrallel
• Opposite angles are equal.
• Adjacent angles are supplementary.
• Diagonals are equal.
• Each of the angles is a right angle.

Formulas :

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

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