# Illuminations: Trigonometry for Solving Problems

The resources provided on this site from the National Council of Teachers of Mathematics include two trigonometry square activity sheets with which students can use to apply trigonometric values to common angles.With the angle of elevation activity sheet students solve two problems, one by using right-angle trigonometry, and the other using the law of sines.The last activity, the angle of declination, uses the law of cosines.This can be a small group activity and answers may vary, but the discussion of each small group in deciding on their “correct” answer is invaluable.

*courtesy of Knovation*