Identifying Types Of Triangles Worksheet Template With Answer Key

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Identifying Types of Triangles
Name:
Determine if each triangle is acute(A), obtuse(O) or right(R) and if it is an equilateral(E),
A n s w e r s
isosceles(I) or scalene(S).
R S
Acute Triangle:
Equilateral Triangle:
1.
All angles are less than 90°.
3 equal sides. 3 equal angles.
Obtuse Triangle:
Isosceles Triangle:
O S
2.
One angle is greater than 90°.
2 equal sides. 2 equal angles.
Right Triangle:
Scalene Triangle:
A E
One angle is 90°.
No equal sides. No equal angles.
3.
O I
4.
1)
2)
A S
108
5.
75
168
156
R I
6.
150
75
A I
7.
O I
8.
3)
4)
150
108
171
150
150
108
5)
6)
152
106
212
150
134
150
7)
8)
84
159
141
108
84
159
1-8
88 75 63 50 38 25 13 0
Math
2

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