Download Classifying Triangles HW (1)-1 - mcdonough-mbvm

Geometry
Worksheet: Classifying Triangles
Name____________________
Date ___________ Period ___
Match each triangle with its description.
1. Side lengths: 2cm, 3cm, 4cm
A.
Equilateral
2. Side lengths: 3 cm, 2cm, 3cm
B.
Scalene
3. Side lengths: 1cm, 4cm, 5cm
C.
Obtuse
4. Side lengths: 4cm, 4cm, 4cm
D.
Not a triangle
5. Angle measures: 60˚, 60˚, 60˚
E.
Equiangular
6. Angle measures: 30˚, 60˚, 90˚
F.
Isosceles
7. Angle measures: 20˚, 145˚, 15˚
G.
Right
Classify each triangle by its angles and by its sides.
8.
9.
59˚
10.
120˚
62˚
59˚
Sides: ____________
Sides: ____________
Sides: ____________
Angles: ____________
Angles: ____________
Angles: ___________
11.
12.
13.
85˚
45˚
50˚
Sides: ____________
Sides: ____________
Sides: ____________
Angles: ____________
Angles: ____________
Angles: ___________
Find the side lengths of each triangle.
14.
15.
z+5
3z - 1
2x + 6.8
4z - 4
8x + 1.4
16. An isosceles triangle has a perimeter of 34 cm. The congruent sides
measure (4x – 1) cm. The length of the third side is x cm. Find x.
Choose the best possible answer.
17. What is the side length of an equilateral triangle with a perimeter of 36
A. 36
2
in.
3
B. 18
1
in.
3
C. 12
1
in.
3
D. 12
2
in?
3
2
in.
9
L
18. Which of the following is NOT a correct classification of  LMN??
A. Acute
B. Equiangular
C. Isosceles
D. Right
600
3 in
3 in
600
M
600
3 in
N