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Perimeter of a rectangle is 26 cm, its length is 8 cm. ∴ Its area is ______. - Mathematics

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Question

Perimeter of a rectangle is 26 cm, its length is 8 cm. ∴ Its area is ______.

Options

  • 144 cm2

  • 40 cm2

  • 48 cm2

  • 120 cm2

MCQ
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Solution

Perimeter of a rectangle is 26 cm, its length is 8 cm. ∴ Its area is 40 cm2.

Explanation:

Given:

  • Perimeter of rectangle = 26 cm
  • Length of rectangle = 8 cm

We know the perimeter (P) of a rectangle is given by:

P = 2 × (Length + Breadth)

Substitute the given values: 

26 = 2 × (8 + Breadth)

26 = 16 + 2 × Breadth

2 × Breadth = 10

Breadth = 5 cm

Now, area (A) of rectangle is:

A = Length × Breadth

= 8 × 5

= 40 cm2

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Chapter 17: Mensuration - MULTIPLE CHOICE QUESTIONS [Page 215]

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B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 17 Mensuration
MULTIPLE CHOICE QUESTIONS | Q 8. | Page 215
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