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For a complete lesson on sin cos tan, go to http://www.yourteacher.com  1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to find the missing side lengths and the missing angle measures in right triangles using sine, cosine, and tangent. Note that a scientific or graphing calculator is required for the problems in this lesson.
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In the right triangle ABC, find the measurement of side b when measurement A=53 degrees and the hypotenuse is 18 cm?
Hello there! When doing a problem like this, you must remember the pythagorean theorem! A^2+ B^2 = C^2
You can fill in A with 53 and fill in C with 18.
When you fill this in, you must ...