90 Sophie drew an angle that turns through of a circle. Which describes the measure of Sophie's angle?
360
1
degree
4
90
degree
360
0 90 degrees
0 360 degrees

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.