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प्रश्न
If the circumference of a circle is 176 cm, find its radius.
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उत्तर
Circumference = 176 cm
Circumference = 2πr ... (where 'r' is the radius of circle)
176 = `2xx22/7xx"r"`
176 × 7 = 2 × 22 × r
1232 = 44r
`1232/44` = r
r = 28
∴ The radius of the circle = 28 cm
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