8.1: 3 Sides; 3 Angles
Examine each set of triangles. What do you notice? What is the same about the triangles in the set? What is different?
Set 1:
Set 2:
Let’s contrast triangles.
Examine each set of triangles. What do you notice? What is the same about the triangles in the set? What is different?
Set 1:
Set 2:
Examine this set of triangles.
Examine this set of triangles.
Both of these quadrilaterals have a right angle and side lengths 4 and 5:
However, in one case, the right angle is between the two given side lengths; in the other, it is not.
If we create two triangles with three equal measures, but these measures are not next to each other in the same order, that usually means the triangles are different. Here is an example: