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2.4 Proportional Lengths
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by Jason Appel
| 23 Questions
By 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.
The outlined content above was added from outside of Formative.
1
1 pt
I've completed the video or mini-lesson on proportional lengths and feel confident that I understand the concept.
True
False
The outlined content above was added from outside of Formative.
2
1 pt
I've completed the video or mini-lesson on triangle proportionality and feel confident that I understand the concept.
True
False
zoom in
3
10 pts
zoom in
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
The outlined content above was added from outside of Formative.
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
The outlined content above was added from outside of Formative.
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
zoom in
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
Add to my formatives list