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# Geometry Warm-Up 2/7/12 - PowerPoint PPT Presentation

Geometry Warm-Up 2/7/12. Find the sine, cosine, and tangent of A & B. 8-4: Trigonometry. Geometry February 7, 2012. TRIGONOMETRY. SIN = OPP/HYP COS = ADJ/HYP TAN = OPP/ADJ. SOH CAH TOA.

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Geometry Warm-Up 2/7/12

• Find the sine, cosine, and tangent of A & B.

### 8-4: Trigonometry

Geometry

February 7, 2012

• SIN = OPP/HYP

SOH CAH TOA

Example 1: A fitness trainer sets the incline on a treadmill to 7°. The walking surface is 5 feet long. Approximately how many inches did the trainer raise the end of the treadmill from the floor?

to 7°. The walking surface is 5 feet long. Approximately how many inches did the trainer raise the end of the treadmill from the floor?Gettin’ Triggy With It”

Example 2: The bottom of a handicap ramp is 15 feet from the entrance of a building. If the angle of the ramp is about 4.8°, how high does the ramp rise off the ground to the nearest inch?

Example 4: Find degree?mB to the nearest tenth of a degree if cosB = 0.8926 and B is an acute angle.