Up Your Score SAT, 2018-2019 Edition The Underground Guide to Outsmarting The Test

Since   the ground  and the building    must    be  perpendicular   (hopefully),    the ladder  must    be  the hypotenuse.

—Samantha

Now do you see the right triangle? Let’s plug in our numbers to the
Pythagorean Theorem.

So  C   is  our answer.

You’ll  save    a   lot of  effort  if  you memorize    these   very

common  right   triangles,  also    known   as  Pythagorean

triplets:   3,  4,  5   5,  12, 13  8,  15, 17

You should also know two special kinds of right triangles. These are given to
you in the reference section at the top of the Math section. But it will make your