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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

The radius and slant height of a cone are 5 cm and 20 cm respectively. Find its curved surface area. (Π = 3.14) - Geometry Mathematics 2

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प्रश्न

The radius and slant height of a cone are 5 cm and 20 cm respectively. Find its curved surface area. (Π = 3.14)

बेरीज
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उत्तर

r = 5 cm, l = 20 cm

∴ Curved surface area = `pirl`

= 3.14 x 5 x 20

= 3.14 x 100

= 314 cm2

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2017-2018 (March) Set A
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