Classify Triangles Worksheet

Classify the triangles by their sides and angles (such as isosceles obtuse).

1 a.
1 b.
2 a.
2 b.
3 a.
3 b.
4 a.
4 b.
5 a.
5 b.
6 a.
6 b.
7 a.
7 b.
8 a.
8 b.
9 a.
9 b.
10 a.
10 b.
Page 2

Answer Key

1 a.  equilateral, acute
1 b.  scalene, right
2 a.  scalene, acute
2 b.  scalene, obtuse
3 a.  isosceles, right
3 b.  isosceles, right
4 a.  scalene, obtuse
4 b.  isosceles, right
5 a.  equilateral, acute
5 b.  scalene, acute
6 a.  isosceles, right
6 b.  isosceles, obtuse
7 a.  scalene, acute
7 b.  scalene, right
8 a.  isosceles, acute
8 b.  isosceles, right
9 a.  isosceles, obtuse
9 b.  isosceles, right
10 a.  isosceles, acute
10 b.  isosceles, obtuse


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