Math, asked by aravjaiswal, 1 year ago

the inner radius of a circular tunnel is 9 m and it is

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Answered by astro33

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question is not complete

aravjaiswal: yes

astro33: what do we find

aravjaiswal: and it is 21 m long . find the cost of painting the inner surface of the tunnel at the rate of 8 per m square

Answered by Anonymous

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