1 / 5

# Warm up - PowerPoint PPT Presentation

Warm up. 1. Sin 50 o = 2. If tan (x) = 1 solve for x. Lesson 9 Nice Triangles. Objective: To learn the sin, cos , and tan functions for the two special triangles . Special Angles. 45 o. 60 o. √2. 1. 2. 1. 45 o. 30 o. 1. √3.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

• 1. Sin 50o =

• 2. If tan (x) = 1 solve for x.

### Lesson 9 Nice Triangles

Objective: To learn the sin, cos, and tan functions for the two special triangles

45o

60o

√2

1

2

1

45o

30o

1

√3

Special Right Triangles are 30-60-90 and 45-45-90

• Converting radians to degrees on a Calculator

• Ex: Convert to degrees:

• MODE: degrees

• [2nd][angle][3][enter]

• It also can be done the other way with MODE set to radians, but it gives the answer in a decimal form instead of in terms of pi.

3 is r