There is a list of triominoes:

0,5,5... 0,1,1... 1,1,3...
you get the picture.
There are 10 triangles. How am I suppose find the measure of the largest angle?

How many sides are congruent? I think 2 but are the talking about the entire triomino?

To find the measure of the largest angle in a triomino, you first need to understand the concept of a triomino.

A triomino is a flat geometric shape consisting of three connected squares. Each square represents a "cell" within the triomino.

In order to find the measure of angles in a triomino, we need to consider the arrangement of the squares and their corresponding angles within the shape.

Now, let's look at the given list of triominoes:
0,5,5... 0,1,1... 1,1,3...

Each set of three numbers represents the lengths of the sides of a single triomino. For example, in the first set (0,5,5), the three sides of the triomino are of lengths 0, 5, and 5.

To clarify, the numbers in the list are not directly related to angles; they represent side lengths. Angles are determined based on the specific configuration of the triomino.

Regarding your second question, when considering congruent sides in a triomino, we are indeed referring to the entire triomino, not just individual sides.

In a triomino, the sides can be congruent (i.e., have equal lengths) or non-congruent, depending on the specific arrangement of the squares. For example, in the second set (0,1,1), two sides are of equal length, making them congruent.

To determine the measure of the largest angle in a triomino, you would need more information about the specific arrangement of the squares within each triomino in the list. Without that information, it is difficult to provide a definite answer.