Quadrilateral abcd is similar to quadrilateral efgh. the lengths of the three longest sides in quadrilateral abcd are 24 feet, 16 feet, and 12 feet long. if the two shortest sides of quadrilateral efgh are 9 feet and 12 feet long, how long is the 4th longest side on quadrilateral efgh

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.