ThatQuiz Test Library Take this test now
Mathews-Triangle Theorems
Contributed by: Mathews
(Original author: Cason)

The sum of the angles for any triangle is 180 degrees.

If we know two angles, we can total and subtract from

180 to get the missing angle.  Find the missing angle

measurement.

23
o
o

39

o

  180

 - 62

  118

   39

+ 23

   62 

The sum of the angles for any triangle is 180 degrees.

If we know two angles, we can total and subtract from

180 to get the missing angle.  Find the missing angle

measurement.

o

63

o

77

o

The sum of the angles for any triangle is 180 degrees.

If we know two angles, we can total and subtract from

180 to get the missing angle.  Find the missing angle

measurement.

o

50

90

o
o

The longest side of a triangle is always directly across

from the largest angle.  The shortest side of the triangle

is always directly across from the smallest angle.   The

medium side is directly across from the medium angle.  

Name the longest side.

23
o

z

118

o

y

x

39

o

 side x

 side y

 side z

The longest side of a triangle is always directly across

from the largest angle.  The shortest side of the triangle

is always directly across from the smallest angle.   The

medium side is directly across from the medium angle.  

Name the longest side.

53

o

z

x

60

o

y

67

o

 side x

 side y

 side z

The longest side of a triangle is always directly across

from the largest angle.  The shortest side of the triangle

is always directly across from the smallest angle.   The

medium side is directly across from the medium angle.  

Name the longest side.

53

o

z

x

60

o

y

67

o

 side x

 side y

 side z

The longest side of a triangle is always directly across

from the largest angle.  The shortest side of the triangle

is always directly across from the smallest angle.   The

medium side is directly across from the medium angle.  

Name the longest side.

53

o

z

x

42

o

85

y

o

 side x

 side y

 side z

The longest side of a triangle is always directly across

from the largest angle.  The shortest side of the triangle

is always directly across from the smallest angle.   The

medium side is directly across from the medium angle.  

Name the longest side.

42

o

z

x

85

53

y

o
o

 side x

 side y

 side z

If three in a row angle, side, angle  OR side, angle, side,

a unique triangle is created.

 

 

If the three sides are known, a unique triangle is created.

 

 

If the three angles are known, then multiple, similar

triangles are created.

Will knowing two sides of a triangle (but NOT knowing

 any angle measure) be one unique or multiple 

possibilities type triangle?


multiple possibilities
unique (only one triangle can be made)

Will knowing two angles of a triangle be a unique or

multiple possibilities type triangle?

 

multiple similar
unique

Will knowing three sides of a triangle be a unique or

multiple possibilities type triangle?

 

multiple possibilities
unique

Will knowing two sides of a triangle and the connecting

angle be a unique or multiple possibilities type triangle?

 

unique
multiple possibilities

Will knowing two angles of a triangle and the connecting

side be a unique or multiple possibilities type triangle?

 

unique
multiple possibilities
Students who took this test also took :

Created with That Quiz — where test making and test taking are made easy for math and other subject areas.