1.Find the circumference of a wheel whose radius is 35 cm. Find the distance covered in 60 seconds, if it revolves 5 times per second.
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Step-by-step explanation:
radius of circle = 35cm
circumference of a circle = 2πr
= 2 × 22/7 × 35 × 35
= 2 × 22 × 5 × 35
= 220 × 35
= 7700 cm sq
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