1. Triangle KMS is equilateral. Find KM if KM = x + 6, KS = 2x – 3, and MS = 4x – 21. A. 9 B. 15 C. 4 D. 21 Hint 2. Find the value of x. A. 135 B. 125 C. 45 D. 145 Hint 3. If is parallel to , what is A. 54 B. 126 C. 71 D. 109 Hint 4. Which postulate can be used to prove the triangles congruent? A. SAS Postulate B. SSS Postulate C. not possible D. ASA Postulate Hint 5. Which pair of triangles is congruent by the SSS Postulate? A. with vertices A(-2, -4), B(-6, 3), andC(-2, 3) and with vertices D(3, 1), E(3, 6), and F(-2, 6) B. with vertices A(3, 3), B(3, 7), and C(-1, 7)and with vertices D(0, 5), E(4, 5), and F(4, -2) C. with vertices A(0, 7), B(0, 0), and C(-3, 0)and with vertices D(5, 5), E(-2, 5), and F(-2, -2) D. with vertices A(0, 2), B(-4, 2), and C(-4, -3)and with vertices D(1, 1), E(1, 5), and F(6, 5) Hint 6. What is the measure of each angle of an equilateral triangle? A. 45° B. 30° C. 60° D. 90° Hint 7. What is the value of x? A. 65° B. 122° C. 58° D. 64° Hint 8. ABC is ______. A. scalene but not acute B. equilateral C. scalene and acute D. isosceles and scalene Hint 9. How many other triangles in the figure appear to be congruent to ABC? A. 8 B. 4 C. 7 D. 3 Hint 10. Triangle RPG and triangle FAS are congruent. Which segment is necessarily congruent to ? A. B. C. D. Hint 11. Refer to the figure. If is perpendicular to both and , and , then ABG ________ by _________. A. EFG by AAS B. FEG by AAS C. FEG by ASA D. EFG by ASA Hint 12. Refer to the figure. If and is perpendicular to both and , then FDA ________ by __________. A. CAD by SAS B. ACF by SAS C. CAD by ASA D. ACF by ASA Hint