直角三角形
We have been computing sine, cosine and tangent using the unit circle, where all right triangles have a hypotenuse of 1. In this task we will explore how to compute these values when given triangles with hypotenuse that is not equal to one.
Notice that each right triangle has an angle other than the right angle marked. That is the angle you are to be focusing on. The triangles can be moved and changed. Take a few moments to explore the sketch before you begin the task below.