Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What...
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![Page 1: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/1.jpg)
Warm-up
4
Find the perimeter and area of both shapes, then double andtriple the dimensions. What happens?
4
4
![Page 2: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/2.jpg)
Agenda
Missing Work Begin Chapter 7 Homework
![Page 3: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/3.jpg)
Given: Points A, B and C are on line l Point P is not on l
PB < PC
Prove: mPCB 90
P
A B C
1.
2.
3.
4.
l
![Page 4: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/4.jpg)
5-5 Triangle Inequalities
If two sides of a triangle are 5 and 12 what are the possible values for the size of the third side?
![Page 5: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/5.jpg)
Book Work
Page 772
Lesson 5-1 #1, 5, 7
Lesson 5-2 #3, 5
Page 773
Lesson 5-3 #2, 6
Lesson 5-4 #2, 4
Page 773
Lesson 5-5 #4, 6, 8
Page 774
Lesson 5-6 #2, 6
![Page 6: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/6.jpg)
7-1 Proportions
8:18
1
Ratio – a comparison of two numbers using division
Proportion – an equation of the form a/b = c/d that states thattwo ratios are equivalent
150
336
100
224
Cross Product – 224(150) = 100(336) extreme
means
b, d can not equal zero
![Page 7: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/7.jpg)
Example
![Page 8: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/8.jpg)
Answers Ahead
![Page 9: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/9.jpg)
7-1 Study Guide
![Page 10: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/10.jpg)
7-1 Study Guide
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7-1 Practice
![Page 12: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/12.jpg)
7-1 Practice
![Page 13: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/13.jpg)
7-1 Practice
![Page 14: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/14.jpg)
7-2 Exploring Similar Polygons
![Page 15: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/15.jpg)
Example Polygon RSTUV is similar to polygon ABCDE
The ratio of lengths of corresponding sides of similar polygons is called theScale Factor. The scale factor of RSTUV to ABCDE is 18:4. The scalefactor of ABCDE to RSTUV is 4:18. How else could these scale factors bestated? What are the values for x and y?
![Page 16: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/16.jpg)
Example Triangle ABC has
vertices A(0, 0), B(4, 0), and C(2, 4). If the coordinates of each vertex are multiplied by 2, will the new figure be similar to the original?
![Page 17: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/17.jpg)
Answers Ahead
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7-2 Study Guide
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7-2 Study Guide
![Page 20: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/20.jpg)
7-2 Study Guide
![Page 21: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/21.jpg)
7-2 Practice
![Page 22: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/22.jpg)
7-2 Practice
![Page 23: Warm-up 4 Find the perimeter and area of both shapes, then double and triple the dimensions. What happens? 4 4.](https://reader036.fdocuments.in/reader036/viewer/2022062806/56649f185503460f94c2f3c5/html5/thumbnails/23.jpg)
Homework
7-1 Multicultural Activity 7-2 Study Guide & Practice