Help! will give brainliest if correct How many different non-congruent isosceles triangles can be formed by connecting three of the dots in a 4 by 4 square array of dots like the one shown below?
Two triangles are congruent if they have the same traced outline, possibly up to rotating and flipping. This is equivalent to having the same set of 3 side lengths.

There are 9 kinds of non-congruent isosceles triangles that can be formed by connecting three of the dots in a 4 x 4 square array of dots

The attached figure represents the explanation of the answer.

Step-by-step explanation:

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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