A plane intersects the prism perpendicular to the base, intersecting opposite sides of the base. Which best describes the cross section?

Iagree that is the answer to the 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.

Answer you gust need two multiple them and will give you the answer