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A path 2 m wide surrounds a circular ...

A path 2 m wide surrounds a circular pond of diameter 40 m. How many cubic metres of gravel are required to grave the path to a depth of 20 cm?

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RD SHARMA-SURFACE AREAS AND VOLUMES-All Questions
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  2. 25 circular plates, each of radius 10.5 cm and thickness 1.6 cm, ar...

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  3. A path 2 m wide surrounds a circular pond of diameter 40 m. How man...

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