How do we prove the triangles are the same?

-if the angles are the same

AAA (angle angle angle law)

-if the sizes are the same

ASA (angle side angle law)

-if the sides and angles are the same.

SAS (side angle side law)

-if the side and side and side equal

SSS (side side side law)

2/4 = 1/2 = 3/6 = 0.5 or 1/2

or you could write it the opposite way:

6/3 = 2/1 = 4/2

It will still equal the same thing:

0.5 or 1/2

*As long as you are comparing "this" to "that".

Is this triangle the same as well?

No, because not all the angles are the same. The sides are not equivalent to the original shape.

Next Unit: Polygons

Definition of a polygon: 2D shape that is a closed figure made of 3 or more line segments.

This unit will be focusing on identify similar polygons and explain why they are similar. Drawing similar polygons. Solving problems using the properties of similar polygons.

Don't forget to check out COOL MATH SITES on the blog.

Also remember to revisit Similarity and Proportions

Homework:

-Go to Mr. Backé 's site

-Textbook: Chapter 4.4

Practice #3, 5, 6

All Apply

Extend any 3 #13-17

Homework Book Chapter 4.4

Extra Practice 4.4

-Mangahigh

Great Post Julibella. your pictures really helped to understand the details you explained in comparing this to that.

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