An old man goes for morning walk on a semi-circular track of radius $30 m$ , if he starts from one end of the track and reaches to other end, the distance covered by the man will be

94 m

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28 m

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65 m

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72 m

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Solution

The correct option is A $94 m$
Distance covered by man = length of the path
$= π R = π \times 30 = 94.2 m \approx 94 m$

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Q. An old man goes for morning walk on a semi-circular track of radius

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An old man goes for morning walk on a semi-circular track of radius 30 m, if he starts from one end of the track and reaches to other end, the distance covered by the man will be

The correct option is A 94 mDistance covered by man = length of the path =πR=π×30=94.2 m≈94 m

An old man goes for morning walk on a semi-circular track of radius $30 m$ , if he starts from one end of the track and reaches to other end, the distance covered by the man will be

The correct option is A $94 m$
Distance covered by man = length of the path
$= π R = π \times 30 = 94.2 m \approx 94 m$