A solid is composed of squares and equilateral triangles. Its net is shown below: A triangular prism and its net are shown. The net is three squares with side length 2 units. Attached above and below the middle square are equal sized triangles. The area of each triangle is 1.5 square units. The surface area of the triangular prism is Answer square units. (Input whole number only.)

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.