1. 7.2 Use the Converse of the Pythagorean Theorem
Hubarth
Geometry

2. The Converse of the Pythagorean TheoremB c a C A b

3. Ex 1. Verify a Right TriangleC 16 12 B A 20
Solution

4. Classifying Trianglesb B c A B c a C A b B c a A b C

5. Ex 2. Acute Triangles Show that the triangle is an acute triangle. 5 4
Solution

6. Ex 3. Obtuse Triangles Show that the triangle is an obtuse triangle.12 8 15
Solution

7. Ex 4. Classify Triangles
Classify the triangles as acute, right, or obtuse. 5 6 8
Solution

8. Ex 5. Classify Triangles
Classify the triangle with the given side lengths as acute, right, or obtuse.
a. 4, 6, 7
b. 12, 35, 37
Solution

9. Practice
Classify the triangle as acute, right or obtuse. Explain 7 1. 2. 3. 17 8 5 6 7 7 15 2
Use the side lengths to classify the triangle as acute, right or obtuse.
4. 7, 24, 24
5. 7, 24, 25