Trigonometric Ratios (Sine, Cosine, Tangent): * This resource is also available as part of a DISCOUNTED bundle: Basic Trig BundleThis is a great activity for practicing using sin, cos, and tan ratios to find missing side lengths and angle measures. Students put together matches from cut up squares. A "match" will contain two triangles that are congruent. This works well as practice, homework, partner work, review, or even as a group quiz. Check out the preview to see how it looks. Try these