• Save
Upcoming SlideShare
×
Like this presentation? Why not share!

Like this? Share it with your network

Share

2.7 Exploring Angles In Polygons

• 1,452 views

More in: Education , Design , Business
• Comment goes here.
Are you sure you want to
Be the first to comment
Be the first to like this

Total Views
1,452
On Slideshare
1,448
From Embeds
4
Number of Embeds
3

Shares
0
0
Likes
0

Embeds4

 http://bitsygriffin.wordpress.com 2 http://www.slideshare.net 1 http://blendedschools.blackboard.com 1

Report content

No notes for slide

Transcript

• 1. Angles in Polygons
11/13/09
• 2. review
Warm up quiz
Model Drawing
Check homework if assigned
• 3. review
What are complementary angles?
2 angles = 90o
• 4. review
What are supplemental angles?
2 angles = 180o
• 5. review
Degrees in interior angle measures of a triangle?
180o
• 6. review
Degrees in interior angle measures of a quadrilateral?
360o
• 7. EQ:
How can I find the sum of the interior angle measures in any polygon?
• 8. How can we prove how many interior angle measures are in a quadrilateral?
Used diagonals.
Draw diagonals.
How many triangles are there?
• 10. How can we prove how many interior angle measures are in a pentagon?
Used diagonals.
• 11. Draw a pentagon.
Draw diagonals.
How many triangles are there?
• 12. How many degrees are in each triangle?
How many total interior degrees are there in pentagon?
• 13. Interior measure chart
Make a chart:
3 columns-10 rows
• 14. 1: figure
2: Sum of &lt;s
3: Increase from last figure.
• 15. Under figure draw:
Triangle