WorksheetsClassifying Triangles
Total questions: 25
Worksheet time: 2hrs 51mins
Name
Class
Date
1.
In a triangle, how many total degrees are there?
a)
100%
b)
180 degrees
c)
it varies
d)
360 degrees
2.
.
.
.
.
What is the name of this kind of triangle?
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Isosceles
c)
Scalene
d)
Equilateral
3.
.
.
.
.
What is the name of this kind of triangle?
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
4.
.
.
What kind of triangle is this?
.
What kind of triangle is this?
a)
Acute
b)
Right
c)
Obtuse
d)
Robot
5.
What kind of triangle is this?
a)
Acute
b)
Super
c)
Right
d)
Obtuse
6.
What kind of triangle is this?
a)
Acute
b)
Right
c)
Sparkly
d)
Obtuse
7.
How many acute angles must an acute triangle have?
a)
2
b)
1
c)
4
d)
3
8.
a)
yes
b)
no
9.
A triangle has two 71° angles and one 38° angle. Is this triangle isosceles?
a)
yes
b)
no
10.
A triangle has side lengths of 19 centimetres, 19 centimetres, and 20 centimetres. Is this triangle equilateral?
a)
equilateral triangle
b)
isosceles triangle
c)
scalene triangle
d)
none of the above
11.
Look at the sides of this triangle. What type of triangle is this?
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Obtuse
12.
Look at the sides of this triangle. What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
13.
What type of angle is this?
a)
Acute
b)
Right
c)
Obtuse
d)
Straight
14.
Which type of angle is this?
a)
Acute
b)
Right
c)
Obtuse
d)
Straight
15.
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
16.
Which type of angle is this?
a)
Acute
b)
Right
c)
Obtuse
d)
Straight
17.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
18.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
19.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
20.
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
21.
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
22.
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
23.
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
24.
If a triangle has no equal sides, what type of triangle is it?
a)
Scalene
b)
Equilateral
c)
Right
d)
Obtuse
25.
If a triangle has two equal sides, what type of triangle is it?
a)
Isosceles
b)
Right
c)
Obtuse
d)
Scalene
100 %
