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Right Angle Trigonometry

Right Angle Trigonometry. Warm Up Given the measure of one of the acute angles in a right triangle, find the measure of the other acute angle. 1. 45° 2. 60° 3. 24° 4. 38°. 30°. 45°. 66°. 52°. Warm Up Continued

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Right Angle Trigonometry

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  1. Right Angle Trigonometry

  2. Warm Up Given the measure of one of the acute angles in a right triangle, find the measure of the other acute angle. 1. 45° 2. 60° 3. 24° 4. 38° 30° 45° 66° 52°

  3. Warm Up Continued Find the unknown length for each right triangle with legs a and b and hypotenuse c. 5. b = 12, c =13 6. a = 3, b = 3 a = 5

  4. Objectives Understand and use trigonometric relationships of acute angles in triangles. Determine side lengths of right triangles by using trigonometric functions.

  5. A trigonometric function is a function whose rule is given by a trigonometric ratio. A trigonometric ratio compares the lengths of two sides of a right triangle. The Greek letter theta θ is traditionally used to represent the measure of an acute angle in a right triangle. The values of trigonometric ratios depend upon θ.

  6. Example 1: Finding Trigonometric Ratios Find the value of the sine, cosine, and tangent functions for θ. sin θ = cos θ = tan θ =

  7. Check It Out! Example 1 Find the value of the sine, cosine, and tangent functions for θ. sin θ = cos θ = tan θ =

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