**1.). If the lengths of two sides of a triangle are 8 and 12, which of the following can be the length of the third side?**

**(A)**4**(B)**5**(C)**3**(D)**20

**2. If the lengths of two sides of a triangle are 21 and 23, which of the following can be the length of the third side?**

**(A)**2**(B)**45**(C)**50**(D)**20

**3. If the lengths of two sides of a triangle are 1 and 4, which of the following can be the length of the third side? **

**(A)**2**(B)**3**(C)**4**(D)**5

**4. If the lengths of two sides of a triangle are 9 and 15, which of the following can be the length of the third side?**

**(A)**4**(B)**5**(C)**6**(D) 7**

**5. If the lengths of two sides Of a triangle are 3 and 8, which of the following cannot the length of the third side?**

**(A)**5**(B)**6**(C)**9**(D) 10**

**6. If the lengths of two sides of a triangle are 9 and I l, which of the following cannot be the length of the third side?**

**(A)**8**(B)**12**(C)**19**(D) 21**

**7. Which of the following can represent the lengths of three sides of a triangle?**

**(A)**{1,3,4}**(B)**{2,5,4}**(C)**{3,6,10}**(D)**{2,3,7}

**8. Which of the following can represent the lengths of three sides-of a triangle? **

**(A)**{4,5,8}**(B)**{1,1,2}**(C)**{6,8,15}**(D)**{11,12,24}

**See also: **