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If two triangles are similar, then their corresponding angles are congruent.
Not similar
We are asked to determine whether the given triangles are similar.
From the picture, we can see that both triangles are right triangles. This means that their corresponding angles are congruent and have a measure of 90 ^(∘).
∠M ≅ ∠P
We know that the sum of the measures of the interior of a triangle is always 180^(∘). This lets us write an equation to find m∠N. 35+90+ m ∠N =180 Let's solve this equation for m ∠N.
The measure of ∠N is 55 ^(∘). Let's mark it on the picture.
We can see that only one pair of angles is congruent. This means that by the rule for Angle-Angle (AA) Similarity these triangles are not similar.