CLASSIFYING TRIANGLE BY 3 GIVEN SIDES WORKSHEET

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State if the three side lengths form an acute, obtuse, or right triangle.

Problem 1 :

5, 12, 13

Problem 2 :

4, 12, 13

Problem 3 :

9, 12, 15

Problem 4 :

3, 4, 5

Problem 5 :

9, 2√22, 13

Problem 6 :

√7, √11, 4

Problem 7 :

14, 5√7, 16

Problem 8 :

√11, √10, √21

Answer Key

1) right triangle

2) obtuse triangle

3) right triangle

4) right triangle

5) right triangle

6) acute triangle

7) acute triangle

8) right triangle

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