do you think increasing the depth of bore well is a good solution for increasing total land area under irrigation? why/why not?
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Answer:
Curved surface area
= 2πrh
= 2π×12×7
= 168π
= 168×722
= 24×22
= 528cm²
Total surface area
=CSA + 2πr²
=528 + 2π×7×7
=528 + (2×7×22)
\sf{= 528 + 308 = 836cm².}=528+308=836cm².
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