1.   Which triangle is isosceles?
    A. with vertices F(-1,-5), G(-3,4), and H(5,2)
    B. with vertices R(3,5), S(1,-8),and T(-1,7)
    C. with vertices A(3,0), B(0,6), and C(3,6)
    D. with vertices M(4,5), N(4,2), and P(-5,2)
    Hint

  2.   If is parallel to , what is
   
    A. 109 B. 126
    C. 71 D. 54
    Hint

  3.   Which angle corresponds to if
    A. B.
    C. D.
    Hint

  4.   Refer to the figure. Complete the congruence statement
   
    A. B.
    C. D.
    Hint

  5.   Which pair of triangles shows by the AAS Theorem?
    A.
    B.
    C.
    D.
    Hint

  6.   Refer to the figure. If is isosceles, which of the following can be used to prove
   
    A. SSS Postulate B. SAS Postulate
    C. AAS Theorem D. ASA Postulate
    Hint

  7.   is isosceles. What is the x-coordinate of B?
   
    A. a B.
    C. b D. 0
    Hint

  8.   is equilateral. What are the coordinates of A?
   
    A. B.
    C. D. (-2b, 0)
    Hint

  9.   Which statement is not true?
    A. A triangle cannot be scalene and isosceles. B. A triangle can be obtuse and isosceles.
    C. In an isosceles triangle, the base is congruent to one of the legs. D. A triangle cannot be obtuse and contain a 90° angle.
    Hint

  10.   What is true about the figure pictured?
   
    A.
    B.
    C.
    D.
    Hint

  11.   Which postulate can be used to prove the triangles congruent?
   
    A. SSS Postulate B. AAA Postulate
    C. SAS Postulate D. ASA Postulate
    Hint

  12.   Refer to the figure. If is perpendicular to both and , and , then ABG ________ by _________.
   
    A. FEG by ASA B. EFG by ASA
    C. EFG by AAS D. FEG by AAS
    Hint

  13.   What is the value of each of the two sides opposite the congruent angles in the triangle pictured?
   
    A. 39 B. 15
    C. 75 D. 27
    Hint

  14.   Triangle ABC has vertices A(2, 5), B(5, 2), and C(2, -1). Classify ABC.
    A. equilateral B. acute
    C. isosceles D. scalene
    Hint



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