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Masja [62]
3 years ago
5

A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 7 meters. If concrete costs $94 per c

ubic meter, how much did the concrete cost for the pillar? Use 3.14 for π , and do not round your answer.
Mathematics
1 answer:
ikadub [295]3 years ago
3 0

Answer:

C = $33,057.92

The cost of the pillar is $33,057.92

Step-by-step explanation:

Given;

Radius of the concrete r = 4 m

Height h = 7 m

Cost per volume R = $94 per cubic meter

π = 3.14

The volume of the cylinder shape concrete is;

V = πr^2 h

Substituting the given values;

V = 3.14×4^2 × 7

V = 351.68 m^3

The cost of the pillar is C;

C = Volume × cost per volume

C = V × R

C = 351.68 m^3 × $94 per cubic meter

C = $33,057.92

The cost of the pillar is $33,057.92

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