Identifying Types Of Triangles Worksheet Template With Answer Key Page 2

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Answer Key
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 I
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:
O I
One angle is 90°.
No equal sides. No equal angles.
3.
A E
4.
1)
2)
A S
5.
159
97
116
O I
6.
168
159
91
R I
7.
R S
8.
3)
4)
150
98
161
150
98
150
101
5)
6)
78
132
140
158
78
150
58
7)
8)
212
150
150
161
1-8
88 75 63 50 38 25 13 0
Math
1

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