## Presentation On Theme: Geometry: Chapter 9 95 Trigonometric Ratios Presentation Transcript:

1 GEOMETRY: Chapter 99.5 Trigonometric Ratios

2 Tangent RatioImage taken from: Geometry. McDougal Littell: Boston, P. 466.

3 Complementary AnglesIn the right triangle, angle A and angle B are complementary so you can use the same diagram to find the tangent of angle A and the tangent of angle B. Notice that the leg adjacent to angle A is the leg opposite angle B and the leg opposite angle A is the leg adjacent to angle B.Image taken from: Geometry. McDougal Littell: Boston, P. 467.

4 Ex. 1: Find tan D and tan F. Write each answer as a fraction and as a decimal rounded to four places.Images taken from: Geometry. McDougal Littell: Boston, P. 458.

5 **Ex. 2: Find the value of x. Answer: 29.4**Images taken from: Geometry. McDougal Littell: Boston, P. 467.

6 **Ex. 3: Find the height of the flagpole to the nearest foot.**Answer: 51 ftImages taken from: Geometry. McDougal Littell: Boston, P. 468.

7 **Special Right Triangles**You can find the tangent of an acute angle measuring 300, 450, or 600 by applying what you know about special right triangles.

8 Ex. 4Use a special right triangle to find the tangent of a 450 angle.Answer: tan 450=1

## Mcdougal Littell Geometry Resource Book Answers

Just go to phschool.com. They have Everything you need.Otherwise, just take a pencil and shuve it up! Ok?

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