Identifying Types Of Triangles Worksheet Template With Answer Key Page 10

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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).
O I
Acute Triangle:
Equilateral Triangle:
1.
All angles are less than 90°.
3 equal sides. 3 equal angles.
Obtuse Triangle:
Isosceles Triangle:
A I
2.
One angle is greater than 90°.
2 equal sides. 2 equal angles.
Right Triangle:
Scalene Triangle:
R I
One angle is 90°.
No equal sides. No equal angles.
3.
O I
4.
1)
2)
R S
5.
94
148
O S
155
6.
110
A E
148
94
7.
A S
8.
150
3)
4)
78
133
150
212
78
5)
6)
101 156
180
150
78
100
115
7)
8)
150
136
158
150
150
1-8
88 75 63 50 38 25 13 0
Math
5

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