Download presentation

Presentation is loading. Please wait.

Published byMaia Canner Modified over 3 years ago

2
Warm up the ol’ thinker Solve for x:

3
HOMEWORK QUESTIONS? Pg 300 1-15

4
Ex. 1 Use the regular pentagon to answer the questions. A)Find the sum of the measures of the interior angles. B)Find the measure of ONE interior angle 540° 108°

5
Ex. 2 Use a regular 15-gon to answer the questions. A)Find the sum of the measures of the interior angles. B)Find the measure of ONE interior angle 2340° 156°

6
Find the measures of one interior angle of the indicated polygon. 1.Regular triangle 2.Regular heptagon 3.Regular dodecagon

7
What about the outside? Finding and using the exterior angle measures of polygons

8
Class Lab Each of you will have a different polygon A set of exterior angles has been drawn on your polygon (remember – one set is either clockwise or counterclockwise) Also, an arch has been drawn through each exterior angle Cut out these “pieces of pie” and try to fit them together… Can you solve the puzzle?

9
1 2 3 4 5 1 3 2 1 3 2 4

10
In any convex polygon, the sum of the measures of the exterior angles, one at each vertex, is 360°. 1 2 3 4 5

11
In any convex polygon, the sum of the measures of the exterior angles, one at each vertex, is 360°. 1 3 2

12
1 3 2 4

13
Ex. 1 Find the measure of ONE exterior angle of a regular hexagon. 60°

14
Ex. 2 Find the measure of ONE exterior angle of a regular heptagon. 51.4°

15
Ex. 3 Each exterior angle of a polygon is 18 . How many sides does it have? n = 20

16
Find the measures of an interior angle and exterior angle of the indicated polygon. 1.Regular triangle 2.Regular 20-gon 3.Regular nonagon 4.Regular heptagon 5.Regular dodecagon 6.Regular 17-gon

17
How many sides does the polygon have? 1.Each interior angle has a measure of 140º 2.Each interior angle has a measure of 175.2º 3.Each exterior angle has a measure of 45º 4.Each exterior angle has a measure of 3º

18
Ex: 3 The measure of each interior angle is 150°, how many sides does the regular polygon have? One interior angle A regular dodecagon

19
142 o 105 o 140 o 124 o xoxo 88 o Find the value of x:

20
64 o 3x o 2x o 110 o 86 o Find the value of x:

21
60 o 100 o 8x o 6x o 20 o Find the value of x:

22
The measures of the interior angles of a convex octagon are 45x, 40x, 155, 120, 155, 38x, 158, 41x. What is the measure of the smallest interior angle?

23
Homework: Pg 301 # 26 - 35

Similar presentations

Presentation is loading. Please wait....

OK

Informal Geometry 10.2 Diagonals and Angle Measure.

Informal Geometry 10.2 Diagonals and Angle Measure.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Free download ppt on relationship between science technology and engineering Ppt on mammals and egg laying animals list Ppt on transportation in human beings higher Ppt on latest i/o devices Moral stories for kids ppt on batteries Convert word doc to ppt online form Ppt on national education policy 1986 monte Ppt on second law of thermodynamics explained Ppt on geography of asia Ppt on road accidents