Strategy #11 Pythagorean Triples
Pythagorean triples refer to right triangles in which the three sides are each nice, whole numbers. Know the following two and their multiples:
3-4-5
5-12-13
Whenever you are dealing with a right triangle look for Pythagorean triples (and their multiples), as they will save you time from working through the Pythagorean Theorem. The test uses them frequently.