Quadrilateral opqr is inscribed inside a circle as shown below. what is the measure of angle p? you must show all work and calculations to receive credit.

Hello, I need to see the graph so I can answer this for you. 

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.