Скачать или смотреть Triangle Similarity AA SSS SAS

In this video, we are going to go over how to triangle similarity by looking at
• What makes triangles similar
• How to prove triangles similar by AA, SSS, and SAS
• Example on how to find the missing side of similar triangles
• Practice Questions

Intro 0:00
What makes triangles similar? 0:29
AA 2:04
SSS 2:48
SAS 4:07
Example 5:07
Practice Questions 6:56

When two triangles have equal angles and proportionate sides, they are similar. This means they can be different in size (smaller or larger) but as long as they have the same angles and the sides are in proportion, they are similar!

There are three ways to prove two triangles similar, let’s take a look at each below:

AA: When two different sized triangles have two angles that are congruent, the triangles are similar. Notice in the example below, if we have the value of two angles in a triangle, we can always find the third missing value.

SSS: When two different sized triangles have three corresponding sides in proportion to each other, the triangles are similar.

SAS: When two different sized triangles have two corresponding sides in proportion to each other and a pair of congruent angles between each proportional side, the triangles are similar.

Practice Questions: https://mathsux.org/2021/05/26/provin...

We can also use similar triangles to find the value of missing lengths based on proportionality.

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