Identifying Types Of Triangles Worksheet Template With Answer Key Page 17

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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).
A S
Acute Triangle:
Equilateral Triangle:
1.
All angles are less than 90°.
3 equal sides. 3 equal angles.
Obtuse Triangle:
Isosceles Triangle:
O I
2.
One angle is greater than 90°.
2 equal sides. 2 equal angles.
Right Triangle:
Scalene Triangle:
O I
One angle is 90°.
No equal sides. No equal angles.
3.
R S
4.
108
1)
2)
133
O S
5.
101
174
108
R I
151
6.
A E
7.
A I
8.
150
3)
4)
84
181
102
141
84
150
5)
6)
109
162
212
150
82
7)
8)
150
148
150
104
150
148
1-8
88 75 63 50 38 25 13 0
Math
9

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