Explanation for Question 19 From the Math (No Calc) Section on the 2018 May Sat
Question 19 says the two acute angles of a right triangle have degree measures 2 of X and Y if side of X is equal to five of our 3 13, what is the value of coastline? 4 So I've gone ahead and I've drawn a right triangle down here at the 5 bottle. And I filled in Y and X. 6 And I've also written down that sign is equal to opposite over hypotenuse and 7 coasts is equal to adjacent overhead pot dues. 8 Now, if you notice the opposite side for X is the adjacent 9 side for Y, which means that it's going to have the same numerator. 10 The sign of ax has the same numerator as the coast of Y. 11 So that's going to be five. And then the hypotony stays the same value. 12 Both of them have the high pot news as the denominator. 13 And that value is 13, according to this information up here. 14 So that means that the coast of Y is actually equal to the side 15 effects. And the answer here is just five over 13.