ACT Math 5.5 Trigonometry
ACT Math: Trigonometry Drill 5, Problem 5. What is the length of side z?
| ACT Math | Trigonometry |
| ACT Mathematics | Trigonometry |
| Foreign Language | Arabic Subtitled Chinese Subtitled Korean Subtitled Spanish Subtitled |
| Geometry | Right Triangles and Trigonometry |
| Language | English Language |
| Product Type | ACT Math |
| Trigonometry | SOHCAHTOA (values and properties of trig functions) Solving right triangles Trigonometric relations in right triangles |
Transcript
the angle. Okay... Pythagorean Theorem time.
Five squared plus twelve squared equals z squared.
25 plus 144 equals z squared.
169 equals z squared.
Taking the square root of both sides, we get that 13 equals z, which means B is the correct
answer. Oh, and one last thing.
5, 12, 13 is a common right triangle that you should memorize for the test. Don't let
it ambush you on test day.