Originally Posted by
KingNathan Thanks to everyone for helping out. This is my challenge. I am studying for the GMAT. In order to survive on this test, I need to be able to do these types of questions quickly. For every answer I can figure out in 15 seconds, gives me 2 extra minutes to work on a very difficult question (which is worth more points under the grading scale). It is multiple choice. The idea of the Side:Side:Side Rad2 ratio should be open and shut for me. I see a perimeter and the goal is to quickly seperate the sides and the hypoteneuse. With only 2 terms in the perimeter formula, that makes it more difficult. For example, I see 16+16 rad 2 and I assume that the 16 is the sum of the 2 sides ( 8 and 8), but that doesn't make sense because then the hypoteneuse would have to be 8 rad 2. This leads me to believe that its the other way around, and the sides are actually 8 rad 2, and 8 rad 2. So my question now is how would I quickly figure out the hypoteneuse (Presumably at this point, 8 rad 2 * rad 2) to be the number 16? Is there a formula for that?