CDKCDK7292 CDKCDK7292

20-02-2024
Mathematics

contestada

A well with inner radius 6 m is dug 21 m deep. The earth taken out is spread evenly around the boundary of the well to make a circular ring platform of 4 m width. Find the height of the platform.
a) 2 m
b) 3 m
c) 4 m
d) 5 m

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