Name ________________________________ Date _____ Class _____ Weekly Review #6 Mr. Lynch Part I: Place the letter of the correct answer on the line provided! _____ 1) Which of the following goes best with orthocenter? a) altitude b) angle bisector c) centroid d) median _____ 2) Which of the following is not an isometry? a) rotation b) reflection c) dilation d) translation _____ 3) Which of the following pairs of angles are not congruent? a) vertical b) alternate interior c) supplementary c) corresponding _____ 4) Which of the following is not a cevian? a) angle bisector c) midpoint b) altitude d) median _____ 5) Which figure has one and only one line of symmetry? a) rhombus b) circle c) square d) isosceles trapezoid Part II: Complete each of the following showing all work!!! 6) Solve the following quadratic equation: x2 = - 4x + 5 7) Find the geometric mean of the following two numbers: 18 and 26 8) Find the equation of the line that passes through the points (-4,1) and (-8,6). 9) If the measure of each base angle of an isosceles triangle is 42° more than the measure of the vertex angle, find the measure of all three angles. 10) In right triangle ABC, CD is the altitude drawn to hypotenuse AB. The length of AD is 9 units more than DB. A D C B a) If DB = x, write an expression for the length of AD in terms of x. b) If CD = 6, find the length of DB.