Brad buys a jacket that is on sale for 30% off the original price.The expression p - 0.3p can be used to find the sale price of
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the area A of the cross section of the column is .
<u>Step-by-step explanation:</u>
Here we have , building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18π, pi meters. We need to find What is the area A of the cross section of the column .Let's find out:
We know that , Circumference of circle =
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We know that area of circle =
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Therefore , the area A of the cross section of the column is .