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Triangles

Total questions: 22

Worksheet time: 55mins

Name
Class
Date
1.

What would this triangle be classified based on its sides?

a)

Right

b)

Scalene

c)

Equilateral

d)

Isosceles

2.

What would a triangle be called with two equal sides AND angles that measure (120 degrees, 45 degrees, and 15 degrees?)

a)

Equilateral Triangle

b)

Isosceles Triangle

c)

Obtuse Triangle

d)

Right Angled Triangle

3.

What type of triangle is this:

a)

Obtuse

b)

Scalene

c)

Equilateral

d)

Isosceles

4.
Find the measure of the indicated angle. 
a)
95
b)
85
c)
35
d)
45
5.
What is the value of the missing angle?
a)
61
b)
50
c)
60
d)
69
6.
What is the sum of the angles inside a triangle?
a)
90
b)
180
c)
360
7.
If 2 of the angles of a triangle are 30 and 70 degrees, the third angle measures...
a)
80
b)
100
c)
60
d)
90
8.
If all three angles are exactly the same measure, how big is each angle?
Hint:    x + x + x  = 180
a)
180 degrees
b)
90 degrees
c)
50 degrees
d)
60 degrees
9.
Find the measure of the missing angle.
a)
90o
b)
100
c)
130o
d)
50o
10.

Classify the angle.

a)

right angle

b)

acute angle

c)

obtuse angle

11.

Classify this angle.

a)

right angle

b)

acute angle

c)

obtuse angle

12.

Classify this angle.

a)

right angle

b)

acute angle

c)

obtuse angle

13.
a)

80o

b)

20o

c)

60o

d)

100o

14.

Classify the triangle.

a)

Right triangle

b)

Acute triangle

c)

Obtuse triangle

15.

A__________ is a plane figure which is bounded by three straight sides

a)

arc

b)

rhombus

c)

3D image

d)

triangle

16.

An _________triangle has three sides equal in length and all angles are 60 degrees

a)

Scalene

b)

Right angle

c)

Isosceles

d)

Equilateral

17.

An triangle which has two sides and two angles equal is a?

a)

Scalene

b)

Isosceles

c)

Equilateral

d)

Right angle

18.

A__________ triangle has three sides of different length

a)

Isosceles

b)

Scalene

c)

Right angle

d)

Equilateral

19.

A __________ triangle has three different angles

a)

Isosceles

b)

Scalene

c)

Sum

d)

Equilateral

20.

A triangle which has a 90 degree angle is a _________ triangle?

a)

quadrant angle

b)

squared angle

c)

right angle

d)

correct angle

21.

The side opposite to the right angle triangle is called the ?

a)

opposite part

b)

hypotenuse

c)

altitude

d)

base

22.

The _______ of a triangle is always positioned horizontally.

a)

altitude

b)

vertex

c)

height

d)

base

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