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types of triangles

Total questions: 50

Worksheet time: 41mins

Name
Class
Date
1.

What type of triangle is this?

a)

Equilateral

b)

Isosceles

c)

Right angled

d)

Obtuse

2.
a)
A
b)
B
c)
C
d)
D
3.
a)
A
b)
B
c)
C
d)
D
4.
a)
Equilateral Triangle
b)
Scalene Triangle
c)
Isosceles Triangle
d)
Right Triangle
5.

Which type of triangle is pictured?

a)

Equilateral Triangle

b)

Right angled Isosceles Triangle

c)

Obtuse Isosceles Triangle

d)

Obtuse Equilateral Triangle

6.
.
a)
A
b)
B
c)
C
d)
D
7.
a)
A
b)
B
c)
C
d)
D
8.
.
a)
A
b)
B
c)
C
d)
D
9.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

10.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

11.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

12.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

13.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

14.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

15.

What type of triangle is shown?

Select all that apply

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

16.

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

17.

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

18.

Acute triangles are triangles with only acute angles inside.


Select all the acute triangles below:

a)
b)
c)
d)
19.

What type of triangle is this?

a)

Equilateral

b)

Isosceles

c)

Right angled

d)

Obtuse

20.
a)
Equilateral Triangle
b)
Scalene Triangle
c)
Isosceles Triangle
d)
Right Triangle
21.

Which type of triangle is pictured?

a)

Equilateral Triangle

b)

Right angled Isosceles Triangle

c)

Obtuse Isosceles Triangle

d)

Obtuse Equilateral Triangle

22.

What triangle has all sides congruent?

a)

scalene triangle

b)

equilateral triangle

c)

isosceles triangle

23.

Select all the sentences that are true.

a)

A triangle is a polygon.

b)

An equilateral triangle is an irregular polygon.

c)

An equilateral triangle is a regular polygon.

d)

A triangle is a quadrilateral.

24.

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.

25.

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.

26.

What type of triangle is this?

a)

Equilateral

b)

Isosceles

c)

Right

d)

Obtuse

27.

What type of triangle is shown?

a)

Isosceles

b)

Right

c)

Equilateral

d)

Scalene

28.

What Type of Triangle is this?

a)

Scalene triangle

b)

Right Triangle

c)

Obtuse Triangle

d)

Isosceles Triangle

29.

An EQUILATERAL triangle has ___________.

a)

3 equal sides

b)

4 equal sides

c)

no equal sides

d)

2 equal sides

30.

A SCALENE triangle has _____________.

a)

3 equal sides

b)

4 equal sides

c)

no equal sides

d)

2 equal sides

31.

An ACUTE triangle has ________________.

a)

1 acute angle

b)

2 acute angles

c)

3 acute angles

d)

no acute angles

32.

An OBTUSE triangle has _____________.

a)

1 obtuse angle

b)

2 obtuse angles

c)

3 obtuse angles

d)

no obtuse angles

33.

A RIGHT triangle has ___________.

a)

1 right angle

b)

2 right angles

c)

3 right angles

d)

no right angles

34.

What kind of triangle is this?

a)

obtuse scalene

b)

right isosceles

c)

acute equilateral

d)

right scalene

35.

A triangle with 3 equal sides

a)

Scalene triangle

b)

Right triangle

c)

Equilateral triangle

d)

Isosceles triangles

36.

A triangle with at least 2 equal sides

a)

Equilateral triangle

b)

Scalene triangle

c)

Acute triangle

d)

Isosceles triangle

37.

A triangle with no equal sides

a)

Scalene triangle

b)

Equilateral triangle

c)

Obtuse triangle

d)

Actue triangle

38.

A triangle that has one right (90 degree) angle.

a)

Acute triangle

b)

Obtuse triangle

c)

Scalene triangle

d)

Right triangle

39.
What type of triangle is this?
a)
equilateral
b)
isosceles
c)
scalene
40.
In a triangle, how many total degrees are there?
a)
100%
b)
180 degrees
c)
it varies
d)
360 degrees
41.

What Type of Triangle is this?

a)

Right Angled triangle

b)

Equilateral triangle

c)

Isosceles triangle

d)

Obtuse Triangle

e)

Acute Triangle

42.

What Type of Triangle is this?

a)

Obtuse Triangle

b)

Equilateral triangle

c)

Isosceles triangle

d)

Scalene Triangle

e)

Acute Triangle

43.

What Type of Triangle is this?

a)

Right Angled triangle

b)

Equilateral triangle

c)

Obtuse Triangle

d)

Scalene Triangle

e)

Acute Triangle

44.

What Type of Triangle is this?

a)

Right Angled triangle

b)

Equilateral triangle

c)

Obtuse Triangle

d)

Isosceles triangle

e)

Acute Triangle

45.

A triangle in which all sides are of equal length is called....

a)

Equilateral triangle

b)

Isosceles Triangle

c)

Obtuse angled Triangle

d)

Right angled Triangle

46.

A triangle in which one angle is right angle is called ...

a)

Obtuse angled Triangle

b)

Right angled Triangle

c)

Acute angled Triangle

d)

Equilateral triangle

47.

A triangle ABC ,AB = 7.8 cm ,AC= 7 cm and BC = 6 cm is....

a)

Isosceles Triangle

b)

Scalene triangle

c)

Equilateral triangle

d)

Right angled Triangle

48.

Identify the type of triangle

a)

Isosceles Triangle

b)

Equilateral triangle

c)

Scalene triangle

d)

Right angled Triangle

49.

In an equilateral triangle measure of each angle is

a)

90 degrees

b)

80 degrees

c)

60 degrees

d)

25 degrees

50.

Perpendicular lines intersect at

a)

60 degrees

b)

80 degrees

c)

90 degrees

d)

120 degrees

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