prove triangles similar by aa 6.4. another postulate all you need are any 2 congruent angles for 2...
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![Page 1: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/1.jpg)
Prove Triangles Similar by AA
6.4
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Another Postulate
All you need are any 2 congruent angles for 2 triangles to be similar.
![Page 3: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/3.jpg)
Why only 2 angles?
• We know that the sum of the interior angles has to be 180.
• Therefore, the third angle also has to be congruent.
![Page 4: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/4.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 5: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/5.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 6: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/6.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 7: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/7.jpg)
Are the 2 triangles similar? Why or why not?
no
![Page 8: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/8.jpg)
Are the 2 triangles similar? Why or why not?
no
![Page 9: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/9.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 10: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/10.jpg)
Are the 2 triangles similar? Why or why not?
no
![Page 11: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/11.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 12: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/12.jpg)
Are the 2 triangles similar? Why or why not?Can’t tell
![Page 13: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/13.jpg)
Are the 2 triangles similar? Why or why not?
Yes
![Page 14: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/14.jpg)
Are the 2 triangles similar? Why or why not?
Yes
![Page 15: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/15.jpg)
Are the 2 triangles similar? Why or why not?
Can’t tell
![Page 16: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/16.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 17: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/17.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 18: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/18.jpg)
Are the 2 triangles similar? Why or why not?
yes
![Page 19: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/19.jpg)
Find the length of x, then find BD
![Page 20: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/20.jpg)
Find the length of x, then find BD
![Page 21: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/21.jpg)
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Proportion Word Problems
![Page 23: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/23.jpg)
• Molly wants to know the height of the flagpole in front of the town hall. She sees that it casts a shadow 24 ft long. She drives a stake into the ground beside the flagpole. The stake is 4 ft high with a shadow 2 feet long. How tall is the flagpole?
![Page 24: Prove Triangles Similar by AA 6.4. Another Postulate All you need are any 2 congruent angles for 2 triangles to be similar](https://reader036.vdocuments.net/reader036/viewer/2022062312/551b284b550346d41a8b498f/html5/thumbnails/24.jpg)
• The scale on a map says that 1 inch equals 150 miles. How many miles apart are two cities if you measure 4 ½ inches between them?