मराठी

To find the distance around a circular disc, multiply the diameter of the disc by 3.14. What is the distance around the disc when the radius is 6.45 cm?

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प्रश्न

To find the distance around a circular disc, multiply the diameter of the disc by 3.14. What is the distance around the disc when the radius is 6.45 cm?

बेरीज
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उत्तर

Given, 

Distance around a circular disc = Diameter of disc × 3.14

Radius of disc = 6.45 cm

Diameter of disc = 2 × Radius of disc = 2 × 6.45 = 12.9 cm

Distance around a circular disc = 12.9 × 3.14 = 40.506 cm

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पाठ 2: Fractions and Decimals - Exercise [पृष्ठ ४६]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
पाठ 2 Fractions and Decimals
Exercise | Q 71. (b) | पृष्ठ ४६
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