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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता ९ वी

Find the following ratio. The lengths of sides of a rectangle are 5 cm and 3.5 cm. Find the ratio of its perimeter to area.

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प्रश्न

Find the following ratio.

The lengths of sides of a rectangle are 5 cm and 3.5 cm. Find the ratio of its perimeter to area.

बेरीज
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उत्तर

Length of the rectangle, l = 5 cm

Breadth of the rectangle, b = 3.5 cm

∴ Perimeter of the rectangle = 2(l + b) = 2 × (5 + 3.5) = 2 × 8.5 = 17 cm

Area of the rectangle = l × b = 5 × 3.5 = 17.5 cm2

Perimeter of the rectangle : Area of the rectangle = 17 : 17.5 =` 17/ 17.5 = 170/175 = ( 170 ÷ 5)/(175 ÷ 5 ) = 34/35 = 34 : 35`

Thus, the ratio of perimeter to area of the rectangle is 34 : 35.

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Properties of Ratio
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Ratio and Proportion - Practice Set 4.2 [पृष्ठ ६३]

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बालभारती Mathematics 1 [English] Standard 9 Maharashtra State Board
पाठ 4 Ratio and Proportion
Practice Set 4.2 | Q (2) (iv) | पृष्ठ ६३

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