The line segment from (0,0)(0,0) to (5,20)(5,20) is revolved about the xx-axis to form a cone. What is the volume of this cone

Set square i think so

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.