8-4 Trigonometry Ms. Andrejko

SOH – CAH - TOA Notes/Vocab Trigonometry- triangle measure Trigonometric Ratio- the ratio of the lengths of the sides of a right triangle NOTE: If you are trying to get an angle measure as your answer, you must use sin-1, cos-1, tan-1. SOH – CAH - TOA

USING THE CALCULATOR!!!

USING THE CALCULATOR!!!

CHECK MODE BEFORE STARTING!!! On the calculator type in: Sin 90 Did you get 1?

Just to get you thinking… b c Sin <B = Cos <B = Tan <B = a c b a

Examples Find sin L, cos L, tan L, sin M, cos M, and tan M. Express each ratio as a fraction and as a decimal to the nearest hundredth.

Practice

Examples Find x. Round to the nearest hundredth.

Practice

Examples

Practice