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Brooklyn Technical High School Exam 3 MP2 Geometry Term I Name ____________________________ Instructor: Mr. Rodriguez Period ____________________________ 1) Find the number of sides of a polygon if the sum of the degree measures of its interior angles is 900. Ans. 2) Find the sum of the degree measures of the interior angles of a polygon that has 12 sides. Ans. 3) A regular polygon has 10 sides. Find the measure of one exterior angle. Ans. 4) Ans. 5) Ans. 6) Ans. 7) Ans. 8) Ans. 9) Ans. 10) Ans. 11) Directions: For multiple choice questions place only the number or letter of the choice in the answer box. Ans. 12) Directions: Write legibly! Ans . 13) Directions: Place you final answer in the answer box! Ans . 14) Ans . 15) Ans . 16) Ans . 17) Ans . 18) Ans . 19) Ans . 20) Ans . 21) Lines l and k intersect. What single transformation is equivalent to the following sequence of transformations? rl rk ABC A) Reflection B) Dilation C) Translation D) Rotation Ans . E) Glide Reflection 22) Ans . 23) If ST is reflected across the line y x , what are the coordinates of the image of point T Ans . 24) Directions: Place parentheses around coordinates! B’ C’ Ans . 25) Ans . 26) Which point represents the image of point A after reflecting through line l . Directions: Pick the point closest to the image of A after reflection in line l . Ans . 27) Polygon ABCD has been rotated counterclockwise around point E. A) Draw an angle of rotation. B) Use your protractor to find the measure of the angle of rotation to the nearest multiple of 5. Directions: When measuring an angle with a protractor make sure that the sides of the angle are long enough to intersect the markings on the protractor! The answer in the answer box should be a multiple of 5. Do not put an answer in the answer box such as 17 or 29 or 42 which are not multiples of 5. Ans . 28) ABC has been rotated about a point to produce the image, namely A' B' C' . Via construction, find the point that represents the center of rotation. Label the point P. Directions: If you’re going to construct a perpendicular bisector of a line segment, make sure the line segment is visible to the grader as well as the markings demonstrating the construction of the perpendicular bisector. Leave all construction marks in all construction questions. 29) Draw a vector that defines the translation from ABC to A' B' C' . Please do not give a rule for the translation such as Ta , b . Do what the question is asking you to do which is to Draw a vector that defines the translation from ABC to A' B'C' . 30) Construct the line of reflection across which the image below was reflected. Directions: If you’re going to construct a perpendicular bisector of a line segment, make sure the line segment is visible to the grader as well as the markings demonstrating the construction of the perpendicular bisector. 31) What is the image of point A after rotating it 120o about point C? Directions: Pick the point closest to the image of A after rotating about point C . Ans . 32) Ans . 33) Ans . 34) Ans . 35) In the figure at the right, quadrilateral ABCD has been reflected over line m and its image reflected over line n. If AA ' 3x and the distance between the parallel lines is represented by x 5 , find the distance between the parallel lines. Directions: The final answer to this question is a number, a value, a numeral. Please do not write an algebraic expression such as x 5 in the answer box. Ans . 36) Ans. 37) Ans. 38) Ans.