1.   The _______________ states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side.
    A. Definition of a Triangle B. Triangle Equality Theorem
    C. Definition of an Inequality D. Triangle Inequality Theorem
    Hint

  2.   If the measures of two sides of a triangle are 3 and 1, between what two numbers must the measure of the third side fall?
    A. 2 and 5 B. 2 and 4
    C. 1 and 3 D. 1 and 7
    Hint

  3.   Refer to the figure. Which statement is never true?
   
    A. If FG = 4, EGDE = 6, then EF < 18.
    B. If is obtuse, then EG > EF.
    C. If EG = 6, ED = 8, and then FG = DF.
    D. If DF = 20, FG = 13, and EG = 15, then EF = 11.
    Hint

  4.   If 15 and 20 are the lengths of two sides of a triangle, between what two numbers must the measure of the third side fall?
    A. 5 and 35 B. 10 and 25
    C. 10 and 35 D. 15 and 20
    Hint

  5.   Ed has a piece of rope with exactly 10 knots tied to make 9 equal lengths as shown. Using the rope, he wants to use the entire rope to make a triangle so that each vertex of the triangle occurs at a knot. How many different triangles can Ed make?
   
    A. 3 B. 4
    C. 5 D. 2
    Hint



Glencoe
The McGraw-Hill Companies