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Which triangle is not similar to the other two triangles?

Which triangle is not similar to the other two triangles?-example-1
User Invin
by
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1 Answer

20 votes
20 votes

Answer:

First choice top-down

Explanation:

The Similarity Theorem Side-Angle-Side it can be checked here to see what triangles are similar.

All 3 triangles have 2 congruent sides so the triangles are all isosceles.

The base angles of isosceles triangles are congruent so knowing this and that the sum of angles in a triangle is 180° we can calculate the measure of all angles.

180-20 = 160; 160/2 = 80°

180-30 = 150; 150/2 = 75°

Now we can conclude that Δ JLK is not similar with Δ MNO ≈ ΔPRQ

Which triangle is not similar to the other two triangles?-example-1
User Ammar Hussein
by
2.9k points