Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Angles and Triangles

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.
Which group of angles measures could form a triangle?
a)
100° 90° 170°
b)
60° 25° 95°
c)
35° 35° 35
d)
90° 60° 45°
2.
Complementary angles added together equal what degree?
a)
180 
b)
90 
c)
60
d)
45
3.
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
4.
What type of angle is this? 
a)
acute
b)
obtuse
c)
right
5.
In a triangle, how many total degrees are there?
a)
100%
b)
180 degrees
c)
it varies
d)
360 degrees
6.
In an equilateral triangle, all angles are equal.  How many degrees in each?
a)
180
b)
60
c)
50
d)
90
7.
This is what kind of angle?
a)
acute
b)
obtuse
c)
right
d)
straight
8.
complementary, supplementary, or neither?
a)
Complementary
b)
Supplementary
c)
Neither
9.
How many degrees make up a triangle?
a)
45
b)
90
c)
60
d)
180
10.

A triangle that has no equal sides is a...

a)

equilateral triangle

b)

isosceles triangle

c)

scalene triangle

d)

obtuse triangle

11.

A triangle in which all angles are smaller than a right angle is a...

a)

obtuse triangle

b)

acute triangle

c)

scalene triangle

d)

right triangle

12.

A triangle in which all angles are smaller than a right angle is a...

a)

obtuse triangle

b)

acute triangle

c)

scalene triangle

d)

right triangle

13.
What is the measurement of a right angle?
a)
70
b)
80
c)
90
d)
180
14.
What type of angle is shown?
a)
acute
b)
obtuse
c)
right 
d)
straight
15.
What type of angle is shown?
a)
acute
b)
obtuse
c)
right
d)
straight
16.
What type of angle is shown?
a)
acute
b)
obtuse
c)
right
d)
straight
17.
What type of angle is shown?
a)
acute
b)
obtuse
c)
right
d)
straight
18.
When classifying a triangle by its angles, what type of triangle has one right angle? 
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
19.
How many obtuse angles are in an obtuse triangle?
a)
1
b)
2
c)
3
d)
4
20.
What is an "Acute" Angle?
a)
Angle that measures 180
b)
An Angle that measures 90
c)
An angle that measures more than 90
d)
An angle that measures less than 90