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

Ask google i believe they can you with that question

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Sry i don't know the answer but are u from kastner?