Typically, they label this angle as theta (Θ). How do mathematicians find sine, cosine, and tangent? Thay start with one of the non-right angles in a right triangle. The other two angles may have any measurements, as long as all three angles add up to 180°. Have you ever seen this type of triangle? If so, you know that one of its three angles is always 90° (a right angle). Sine, cosine, and tangent are important to the study of right triangles. It can help us better understand the connections between the sides and angles of rectangles. Trigonometry is connected to geometry and other branches of math. You may have heard about them already in math class. What are sine, cosine, and tangent? They’re three of the main functions in trigonometry. What are we talking about? Sine, cosine, and tangent, of course! Today, we’re getting curious about another topic related to triangles. They might even know the other types of triangles. They may have read about Pascal’s Triangle. Many of our Wonder Friends already know about the Pythagorean Theorem.
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