*This preview shows
pages
1–3. Sign up
to
view the full content.*

Agenda
1.
Classwork
2.
Lesson: 1.4 Angle Measures in Degrees and Radians
_______________________________________
Lesson: 1.4 Angle Measures in Degrees and Radians
Measure angles and arcs in degrees and radians
1.
Change from degree/radians to radians/degrees
2.
Goals:
DOD
Central Angle of a Circle:
Angle whose vertex is the center of the circle.
Subdivisions of Degrees.
Minutes:
± ² ³´µ¶·³´¶¸¹º»¼½¾¿
Seconds:
À
² ³´
ÀÀ
·
³´¶¾½ÁÂºÃ¾
¿
To convert from degrees to minutes, use
Ä
ÅÆ
Ç
È
É
To convert from minutes to seconds, use
Ä
ÅÆ
ÇÇ
È
Ç
É
To go in the other direction, use the reciprocals of above.
____________________________________
Examples
Express in degrees, minutes, seconds
Ê´Ë³±¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ÌÊ
Ê
±
Express in decimal degrees (to the nearest hundredth of a degree)

This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*