Math, asked by algerialife8, 11 months ago

A tall cylindrical concrete pylon is 6.4m high and has a
diameter of 32cm.
If a cubic metre of concrete mix costs $124.50 to lay,
how much will it cost to make twelve such pylons?
Give your answer to the nearest ten dollars

Answers

Answered by haridasan85
6

Answer:

vol. of 12pylons = 12xπr 2h

r=0.16m, h=64m

vol=12x3.14x0.16^2 x6.4=6.173m3

cost of concrete @$124.50/m3

6.173x124.5=$768.54

= $770

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