PP Section 6.5 - Right Triangle Trigonometry Right Triangle...

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Unformatted text preview: Right Triangle Trigonometry Right Triangle Trigonometry Find the value of trigonometric functions of acute angles. Find the value of trigonometric functions of acute angles. Use the Complementary Angle Theorem. Use the Complementary Angle Theorem. Solve right triangles. Solve right triangles. Solve applied problems. Solve applied problems. Facts about Right Triangles Facts about Right Triangles The sides that form the right angle are called the legs of the triangle. Since the sum of the three angles must be 180, the sum of the two non-right angles is 90, so they are complementary angles. The non-right angles both measure less than 90, so they are acute angles. a b c A C B For right triangles: c a A = = hypotenuse opposite sin c b A = = hypotenuse adjacent cos b a A = = adjacent opposite tan 2 2 2 c b a = + a b c A C B Also: c b B = = hypotenuse opposite sin c a B = = hypotenuse adjacent cos b a B = = opposite adjacent cot A and B are complementary angles (sum is 90) and sin...
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PP Section 6.5 - Right Triangle Trigonometry Right Triangle...

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