Free Printable Triangles 2

Free Printable Worksheets

Worksheets

Triangles 2

Total questions: 30

Worksheet time: 48mins

Name

Class

Date

1.

The sum of the interior angles of a triangle is equal to ________ degrees.

a)

100

b)

180

c)

90

d)

360

2.

Which would be the best classification for the triangle shown?

a)

acute isosceles

b)

right scalene

c)

acute scalene

d)

obtuse scalene

3.

Which would be the best classification for the triangle shown?

a)

acute isosceles

b)

equiangular scalene

c)

equiangular isosceles

d)

equiangular equilateral

4.

Which would be the best classification for the triangle shown?

a)

right isosceles

b)

obtuse scalene

c)

obtuse isosceles

d)

right scalene

5.

Find the measure of the indicated angle.

a)

95

b)

85

c)

35

d)

45

6.

.
.
.
.
What is the name of this kind of triangle?

a)

Right

b)

Isosceles

c)

Scalene

d)

Equilateral

7.

Can a triangle be formed with side lengths:
4, 7, 10

a)

yes

b)

no

c)

not enough information

8.

Find the measure of the missing angle.

a)

90^o

b)

10⁰

c)

130^o

d)

50^o

9.

An triangle that has angles which measures less than 90° is called a/an __________ triangle

a)

Acute

b)

Obtuse

c)

Right

d)

Straight

10.

A point where 2 rays meet to form an angle.

a)

vertex

b)

angle

c)

arc

d)

corner

11.

Name this triangle.

a)

acute triangle

b)

right triangle

c)

straight triangle

d)

obtuse triangle

12.

An EQUILATERAL triangle has ___________.

a)

3 equal sides

b)

4 equal sides

c)

no equal sides

d)

2 equal sides

13.

Classify this triangle based on its angles.

a)

acute

b)

right

c)

obtuse

14.

Classify this triangle based on its angles.

a)

acute

b)

right

c)

obtuse

15.

Classify this triangle based on its angles.

a)

acute

b)

right

c)

obtuse

16.

Classify this triangle based on its angles.

a)

acute

b)

right

c)

obtuse

17.

Classify this triangle based on its angles.

a)

acute

b)

right

c)

obtuse

18.

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

19.

What type of triangle is shown?

a)

Isosceles

b)

Right

c)

Equilateral

d)

Scalene

20.

What type of triangle is shown?

a)

Isosceles

b)

Right

c)

Equilateral

d)

Scalene

21.

Daniel has drawn a triangle with sides of length 5cm, 5cm and 8cm.

What type of triangle has he drawn?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

22.

Charlotte has drawn a triangle with angles of 60°, 60° and 60°.

What type of triangle has she drawn?

a)

Isosceles

b)

Right-angled

c)

Scalene

d)

Equilateral

23.

Select all the sentences that are true.

a)

All triangles have 3 vertices.

b)

All right angle triangles have ONLY ONE angle that equals 90 degrees.

c)

A triangle can have two obtuse angles.

d)

A triangle cannot have 2 congruent sides.

24.

Choose the false statement below.

a)

The sum of all angles in a triangle (when added together) will equal 180 degrees.

b)

The best ways to measure angles is with a protractor.

c)

All triangles are not considered quadrilaterals because they have three sides.

d)

You cannot create an isosceles triangle with a right angle.

25.

Which two triangles can be joined together to make a rhombus?

a)

2 isoceles triangles

b)

2 scaled triangles

c)

2 right angle triangles

d)

None of the above

26.

Jenny draws a right angle triangle using a protractor. She names the right angle, angle a. She measures angle b and it is 56 degrees. What is the measure of the last angle?

a)

24 degrees

b)

90 degrees

c)

180 degrees

d)

34 degrees

27.

What Type of Triangle is this?

a)

Scalene triangle

b)

Right Triangle

c)

Obtuse Triangle

d)

Isosceles Triangle

28.

An ISOSCELES triangle has _____________.

a)

3 equal sides

b)

4 equal sides

c)

no equal sides

d)

at least 2 equal sides

29.

A SCALENE triangle has _____________.

a)

3 equal sides

b)

4 equal sides

c)

no equal sides

d)

2 equal sides

30.

Which type of triangle is formed given the following angle measurements?
Angle 1: 20 degrees
Angle 2: 30 degrees
Angle 3: 80 degrees

a)

Acute

b)

Obtuse

c)

Right

d)

No triangle

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