Name: 
 

3-3 Triangle fundamentals



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which of the following sets of numbers cannot represent the lengths of the sides of a triangle?
A
9, 40, 41
B
7, 7, 3
C
4, 5, 1
D
5, 5, 5
 

 2. 

Which set of numbers could represent the lengths of the sides of a triangle?
A
1, 2, 3
B
2, 4, 6
C
3, 5, 7
D
5, 10, 20
 

 3. 

If the lengths of the two sides of a triangle are 5 and 7, the length of the third side may not be:
A
12
B
7
C
3
D
5
 

 4. 

Name the longest side of figure ABCD.
mc004-1.jpg
A
mc004-2.jpg
B
mc004-3.jpg
C
mc004-4.jpg
D
mc004-5.jpg
 

 5. 

In mc005-1.jpgXYZ, mmc005-2.jpgX = 35° and mmc005-3.jpgZ = 50°.  Which of the following is the shortest side?
A
mc005-4.jpg
B
mc005-5.jpg
C
mc005-6.jpg
D
None of these
 

 6. 

In mc006-1.jpgRST, mmc006-2.jpgR = x + 6, mmc006-3.jpgS = 2x + 4 and mmc006-4.jpgT = x - 6.  Which list of sides for mc006-5.jpgRST are ordered correctly from longest to shortest?
A
mc006-6.jpg
B
mc006-7.jpg
C
mc006-8.jpg
D
mc006-9.jpg
 



 
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