Identifying Types Of Triangles Worksheet Template With Answer Key Page 6

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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).
R I
Acute Triangle:
Equilateral Triangle:
1.
All angles are less than 90°.
3 equal sides. 3 equal angles.
Obtuse Triangle:
Isosceles Triangle:
A E
2.
One angle is greater than 90°.
2 equal sides. 2 equal angles.
Right Triangle:
Scalene Triangle:
A I
One angle is 90°.
No equal sides. No equal angles.
3.
O I
4.
150
1)
2)
R S
5.
A S
150
150
6.
212
150
O I
7.
150
O S
8.
3)
4)
74
127
152
152
74
100
150
5)
6)
153
182
103
109
134
7)
8)
94
106
155
163
94
80
1-8
88 75 63 50 38 25 13 0
Math
3

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