What is the surface area of the prism shown to the left?
12
15
20
0000
855 units squared
828 units squared
720 units squared
900 units squared

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.

Equatorial triangle and obtuce angle