Math, asked by PayalDadhich5323, 1 year ago

A well 3m in radius and 21m deep is to be dig find the cost of digging the wall at rs 1.50 per cubic m

Answers

Answered by punya04kapoor05
5

Answer:

circumference=2πr

2*3*22/7=18.85

18.85*21=395.85

395.85/1.5=263.9

therefore,  rupees 263.9 would be the cost.

hope it helps!!

Step-by-step explanation:



manassingh29: its wrong question has asked volume you have made surface area .
Answered by manassingh29
5
vol of well = 22/7×9×21=594m^3
cost = 594×1.5=891rs
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