3 years ago

A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18pi meters.

1 answer:

6 0

Answer:

Step-by-step explanation:

Circumference formula: C = 2πr

Compare with given value and determine the radius:

Find the area of the cross-section.

Area formula: A = πr²

Area: A = 9²*π = 81π m²

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