Worksheetsclassifying triangles
Total questions: 51
Worksheet time: 49mins
Name
Class
Date
1.
Look at the sides of this triangle. What type of triangle is this?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Obtuse
2.
Look at the sides of this triangle. What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
3.
Look at the sides and angles of this triangle. Which type of triangle is pictured?
a)
Equilateral Triangle
b)
Right Isosceles Triangle
c)
Obtuse Scalene Triangle
d)
Obtuse Equilateral Triangle
4.
Look at the sides and angles of this triangle. Which type of triangle is pictured?
a)
Equilateral Triangle
b)
Scalene Triangle
c)
Isosceles Triangle
d)
Right Triangle
5.
Classify this triangle.
a)
A
b)
B
c)
C
d)
D
6.
Look at the sides and angles of this triangle. Which type of triangle is pictured?
a)
A
b)
B
c)
C
d)
D
7.
Look at the sides of this triangle. What type of triangle is this?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Obtuse
8.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
9.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
10.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
11.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
12.
If a triangle has all angles less than 90° and two equal sides, what type of triangle is it?
a)
Acute Isosceles
b)
Acute Scalene
c)
Obtuse Scalene
d)
Obtuse Isosceles
13.
If a triangle has one angle greater than 90° and no equal sides, what type of triangle is it?
a)
Acute Isosceles
b)
Acute Scalene
c)
Obtuse Scalene
d)
Obtuse Isosceles
14.
If a triangle has one angle exactly 90° and two equal sides, what type of triangle is it?
a)
Right Isosceles
b)
Acute Scalene
c)
Obtuse Scalene
d)
Obtuse Isosceles
15.
If a triangle has all three angles equivalent and all three sides equivalent, what type of triangle is it?
a)
Acute Isosceles
b)
Equilateral
c)
Obtuse Scalene
d)
Obtuse Isosceles
16.
If a triangle has no equal sides, what type of triangle is it?
a)
Scalene
b)
Equilateral
c)
Right
d)
Obtuse
17.
If a triangle has two equal sides, what type of triangle is it?
a)
Isosceles
b)
Right
c)
Obtuse
d)
Scalene
18.
What type of triangle is this?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Obtuse
19.
How many acute angles must an acute triangle have?
a)
2
b)
1
c)
4
d)
3
20.
What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
21.
a)
A
b)
B
c)
C
d)
D
22.
a)
A
b)
B
c)
C
d)
D
23.
.
a)
A
b)
B
c)
C
d)
D
24.
a)
A
b)
B
c)
C
d)
D
25.
a)
A
b)
B
c)
C
d)
D
26.
a)
A
b)
B
c)
C
d)
D
27.
a)
A
b)
B
c)
C
d)
D
28.
a)
A
b)
B
c)
C
d)
D
29.
a)
A
b)
B
c)
C
d)
D
30.
a)
A
b)
B
c)
C
d)
D
31.
Which type of triangle is pictured?
a)
Equilateral Triangle
b)
Right Isosceles Triangle
c)
Obtuse Scalene Triangle
d)
Obtuse Equilateral Triangle
32.
a)
Equilateral Triangle
b)
Scalene Triangle
c)
Isosceles Triangle
d)
Right Triangle
33.
Which would be the best classification for the triangle shown?
a)
acute isosceles
b)
equiangular scalene
c)
equiangular isosceles
d)
equiangular equilateral
34.
Which would be the best classification for the triangle shown?
a)
acute isosceles
b)
obtuse scalene
c)
obtuse isosceles
d)
acute scalene
35.
Which would be the best classification for the triangle shown?
a)
right isosceles
b)
obtuse scalene
c)
obtuse isosceles
d)
right scalene
36.
Which would be the best classification for the triangle shown?
a)
right isosceles
b)
obtuse scalene
c)
obtuse isosceles
d)
acute scalene
37.
Which would be the best classification for the triangle shown?
a)
acute isosceles
b)
right scalene
c)
acute scalene
d)
obtuse scalene
38.
Classify this triangle.
a)
A
b)
B
c)
C
d)
D
39.
Classify this triangle.
a)
A
b)
B
c)
C
d)
D
40.
Classify this triangle.
a)
A
b)
B
c)
C
d)
D
41.
Classify this triangle.
a)
A
b)
B
c)
C
d)
D
42.
Classify this triangle.
a)
A
b)
B
c)
C
d)
D
43.
What type of triangle is this?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Obtuse
44.
How many acute angles must an acute triangle have?
a)
2
b)
1
c)
4
d)
3
45.
What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
46.
All angles of a triangle add up to what degrees?
a)
180
b)
360
c)
90
d)
100
47.
How many right angles can a triangle have?
a)
1
b)
2
c)
3
d)
0
48.
Look at the sides of this triangle. What type of triangle is this?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Obtuse
49.
Look at the sides of this triangle. What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
50.
Look at the sides and angles of this triangle. Which type of triangle is pictured?
a)
Equilateral Triangle
b)
Right Isosceles Triangle
c)
Obtuse Scalene Triangle
d)
Obtuse Equilateral Triangle
51.
Look at the sides and angles of this triangle. Which type of triangle is pictured?
a)
Equilateral Triangle
b)
Scalene Triangle
c)
Isosceles Triangle
d)
Right Triangle
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