What’s the area of this shape? And how did you find it?

Alr cool i like typing things ; ; ! & : 9: & : & : & & 392: ; ! ,@: 929: & : 83$:

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.