The diameter of a well is 2.1 m and is 14 m deep. Findthe cost of plastering it at Rs 5 per square metre.
Answers
Answered by
29
Answer:
462 rupees
Step-by-step explanation:
diameter of well=2.1m
radius of well=2.1/2=1.05m
depth of well will be it's height=14m
inner surface area of cylinder is =2πrh
= 2*22/7*1.05*14
=44/7*14.7
=44*2.1
=92.4m*2
cost of plastering at the rate of 5per square metre=92.4*5
=462rupees
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Answered by
0
Answer:
state the function and the answer is 4620 metre square
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