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2 years ago

14

Please tell me the correct answer and I will mark you brainliest

1 answer:

RoseWind [281]2 years ago

8 0

All of the answers you put are correct. good job!

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2 years ago

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2 years ago

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

Whitepunk [10]

Answer:

$A=81\pi\ m^{2}$

Step-by-step explanation:

Step 1

Find the radius of the circular cross section

we know that

The circumference is equal to

$C=2\pi r$

we have

$C=18\pi\ m$

substitute and solve for r

$18\pi=2\pi r$

simplify

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Step 2

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2 years ago