Students have been learning a lot about trigonometry. They started by looking at right triangles and reviewing what they already knew about the Pythagorean Theorem. Next, students learned about the six trigonometric ratios in relation to right triangles, and used this understanding to find missing sides in right triangles when given the measures of one angle and one side. After students developed their understanding of trigonometry within right triangles, we started to look at how to apply their knowledge to angles larger than 90 degrees. To do this, students looked at angles in the coordinate plane and used reference angles to determine their trigonometric functions. Students then learned how to write angle measures using radians instead of degrees, and worked on converting between the two units. Finally, students looked at inverse trigonometric functions and used what they had learned about the trigonometric functions of certain angles to answer questions involving their inverses. Students also applied this understanding of inverse trigonometric functions to right triangles and are able to determine the angles in a right triangle given the measures of two of the sides.
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