Originally Posted by

**AlderDragon** I am reviewing for the 11th grade state assessment tests which are coming up soon. The formula I am given for finding the surface area of a cone is:

SA = πr² + πr √r² + h²

The information I am given in the example problem is: r = 3 cm, h = 4 cm.

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I am not here to ask for the answer - I simply wonder what to do next. My work so far looks like this:

SA = πr² + πr √r² + h²

SA = π(3²) + π(3) √(3²) + (4²)

SA = 37.699 √25

The correct answer in this question is given: 75.36 sq cm. Did I do my order of operations wrong (for what I have shown), and, how do you find the final answer?

Any help is appreciated, thank you.