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Triangles, Angles and Lines

Total questions: 58

Worksheet time: 45mins

Name
Class
Date
1.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

2.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

3.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

4.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

5.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

6.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

7.

What type of triangle is shown?

Select all that apply

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

8.

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

9.

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

10.

Acute triangles are triangles with only acute angles inside.


Select all the acute triangles below:

a)
b)
c)
d)
11.

What type of triangle is this?

a)

Equilateral

b)

Isosceles

c)

Right angled

d)

Obtuse

12.
a)
Equilateral Triangle
b)
Scalene Triangle
c)
Isosceles Triangle
d)
Right Triangle
13.

Which type of triangle is pictured?

a)

Equilateral Triangle

b)

Right angled Isosceles Triangle

c)

Obtuse Isosceles Triangle

d)

Obtuse Equilateral Triangle

14.

What triangle has all sides congruent?

a)

scalene triangle

b)

equilateral triangle

c)

isosceles triangle

15.

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.

16.

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.

17.

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.

18.

Here is a soccer field divided into two congruent right angle triangles. If the total area of the field is 390m2, what is the area of one triangle?

a)

63m2

b)

39m2

c)

195m2

d)

75.7m2

19.

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

20.

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

21.
.
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Isosceles
c)
Scalene
d)
Equilateral
22.
.
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
23.
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
24.

this is . . .

a)

an acute triangle

b)

an obtuse triangle

c)

a right triangle

d)

an isosceles triangle

25.

This is . . .

a)

a scalene triangle

b)

an obtuse triangle

c)

an equilateral triangle

d)

a right triangle

26.
Look at the sides of this triangle. What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
27.
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
28.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
29.
a)
Equilateral
b)
Isosceles
c)
Scalene
d)
Right
30.

Classify this triangle by its sides.

a)

equilateral

b)

scalene

c)

isosceles

31.
a)

equilateral

b)

isosceles

c)

scalene

32.
a)

equilateral

b)

isosceles

c)

scalene

33.
a)

equilateral

b)

isosceles

c)

scalene

34.
a)

equilateral

b)

isosceles

c)

scalene

35.

What Type of Triangle is this?

a)

Right Angled triangle

b)

Equilateral triangle

c)

Isosceles triangle

d)

Scalene Triangle

e)

Acute Triangle

36.

What Type of Triangle is this?

a)

Isosceles triangle

b)

Equilateral triangle

c)

Obtuse Triangle

d)

Scalene Triangle

e)

Right Angled triangle

37.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

38.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

39.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

40.

What type of triangle is shown?

a)

Isosceles

b)

Right-angled

c)

Equilateral

d)

Scalene

41.

what is the name of the image

a)

straight angle

b)

full angle

c)

acute angle

d)

right angle

42.

what is the name of this image

a)

straight angle

b)

acute angle

c)

reflex angle

d)

right angle

43.

what is the name of this image

a)

straght angle

b)

right angle

c)

full angle

d)

right angle

44.

what is the name of image

a)

right angle

b)

full angle

c)

acute angle

d)

straight angle

45.

what is the name of image

a)

acute angle

b)

full angle

c)

straght angle

d)

right angle

46.

what is the name of image

a)

straight angle

b)

acute angle

c)

abtuse angle

d)

right angle

47.

what is the name of angle

a)

right angle

b)

acute angle

c)

full angle

d)

straight angle

48.

What type of angle is 90 °\degree ? 

a)

Straight Angle

b)

Acute Angle

c)

Right Angle

d)

Obtuse Angle

49.

What type of angle is less than 90 °\degree ? 

a)

Straight Angle

b)

Acute Angle

c)

Right Angle

d)

Obtuse Angle

50.

Identify the type of angle:

a)

right angle

b)

straight angle

c)

acute angle

d)

obtuse angle

51.
What type of line does the picture represent? 
a)
Parallel
b)
Intersecting
c)
Perpendicular
52.
What type of line does the picture represent? 
a)
Parallel
b)
Intersecting
c)
Perpendicular
53.
What does this image show?
a)
parallel lines
b)
perpendicular lines
c)
intersecting lines
d)
line segments
54.
What is the best term to describe this image?
a)
intersecting lines
b)
perpendicular lines
c)
parallel lines
d)
arrows
55.
What type of line does the picture represent?
a)
Parallel
b)
Intersecting
c)
Perpendicular
56.
Parallel lines ...
a)
will never intersect
b)
intersect to form right angles
c)
are curved lines
57.
What type of line does the picture represent?
a)
Parallel
b)
Intersecting
c)
Perpendicular
58.

What is the definition of perpendicular lines?

a)

Lines that never intersect.

b)

Lines that intersect to form right angles.

c)

Lines that intersect at any angle.

d)

Lines that are straight.

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