need to find how much concrete to mix for anchor holes

the hole diameter is 24" the depth is 5'

so 24/12=2

so to figure cubic ft would be 3.14*2*5=31.4

then to cubic yards 31.4/3=10.466

is this correct?

the hole diameter is 24" the depth is 5'

so 24/12=2

so to figure cubic ft would be 3.14*2*5=31.4

then to cubic yards 31.4/3=10.466

is this correct?

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