2.4 Proportional Lengths

by Jason Appel

| 23 QuestionsBy the end of this playlist I can...

-recognize when segments are divided proportionally

-recognize and apply the following theorems:

1. If a line parallel to one side of a triangle intersects the other two sides, then it divides those sides proportionally.

2. If 3 parallel lines intersect 2 transversals, then they divide the transversals proportionally.

3. If a ray bisects an angle of a triangle, then it divides the opposite side into segments proportional to the other two sides.

1

1 pt

I've completed the video or mini-lesson on proportional lengths and feel confident that I understand the concept.

True

False

2

1 pt

I've completed the video or mini-lesson on triangle proportionality and feel confident that I understand the concept.

True

False

3

3

10 pts

4

4

10 pts

Try a few of these practice problems on finding missing lengths in similar triangles. Move on when ready.

5

1 pt

I've completed the Khan Academy practice problems on finding missing lengths in similar triangles.

True

False

6

1 pt

I've completed the video or mini-lesson on 3 parallel lines intersected by 2 transversals and feel confident that I understand the concept.

True

False

7

1 pt

I've completed the video or mini-lesson on the triangle angle-bisector theorem and feel confident that I understand the concept.

True

False

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

8

10 pts

True

False

9

10 pts

True

False

10

10 pts

True

False

11

10 pts

True

False

12

10 pts

True

False

13

10 pts

True

False

14

10 pts

True

False

15

10 pts

True

False

16

10 pts

17

10 pts

18

10 pts

19

10 pts

20

10 pts

21

10 pts

22

10 pts

23

10 pts

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