MATHCP Geometry  - Unit 7: Angles, Transversals, and Parallel Lines
Angle Relationships

For the first four questions complete the theorems by filling in the blanks.

1) Theorem 7-A: Congruence of angles is reflexive, symmetric, and __________.

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2) Theorem 7-B: If two angles form a linear pair, then they are __________.

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3) Theorem 7-C: Angles supplementary to the same angle are __________.

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4) Theorem 7-D: Angles supplementary to congruent angles are __________.

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5) Copy or print Theorem 7-E and complete the proof by filling in the blanks. State the answers by giving the number of the statement or reason, and then the answer. Refer to Theorem 7-C in the unit link to “Angle Relationships” for a model of a proof similar to this one.

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6) Copy or print Theorem 7-F and complete the proof by filling in the blanks. State the answers by giving the number of the statement or reason, and then the answer. Refer to Theorem 7-D in the unit link to “Angle Relationships” for a model of a proof similar to this one.

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For the next three questions complete the theorems by filling in the blanks.

7) Theorem 7-G: Right angles are __________.

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8) Theorem 7-H: Vertical angles are __________.

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9) Theorem 7-I: Perpendicular lines intersect to form __________.

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Lines Cut by a Transversal

10) What is the name given to a line that crosses two or more lines at different points?

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For the next five questions, select the term that best matches the description. Each description is based on two lines cut by a transversal.

11) angles that are located on the same side of the transversal and their position is corresponding relative to the lines

12) angles that are located within the exterior of the lines

13) angles that are located within the interior of the lines and are on opposite sides of the transversal

14) angles that are located within the exterior of the lines and are on opposite sides of the transversals

15) angles that are located within the interior of the lines

16) In the figure shown below, which pairs of angles are consecutive interior angles?

Refer to the figure below to answer the next eight questions.

17) Name one angle that falls in the interior of lines “m” and “n”.

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18) Name one angle that falls in the exterior of lines “m” and “n”.

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19) What kind of angles are angles 1 and 11?

20) What kind of angles are angles 8 and 10?

21) What kind of angles are angles 7 & 10?

22) What kind of angles are angles 1 & 16?

23) What kind of angles are angles 8 & 14?

24) What kind of angles are angles 5 & 12?

Parallel, Intersecting, and Skew Lines

For the next three questions, select the term that matches the given geometric figure.

25) What type of planes are planes “C” and “D”?

26) Lines “v” and “w” do not intersect. What type of lines are lines “v” and “w”?

27) Lines “f” and “g” lie in the same plane and do not intersect. What type of lines are lines “f” and “g”?

Refer to the diagram to answer the next six questions. Identify the relationship between the two given line segments.

28) What type of segments are the two given line segments?

29) What type of segments are the two given line segments?

30) What type of segments are the two given line segments?

31) What type of segments are the two given line segments?

32) What type of segments are the two given line segments?

33) What type of segments are the two given line segments?

Parallel Lines Cut by a Transversal

34) Fill in the blank. Postulate 7-A: If two parallel lines are cut by a transversal, then each pair of __________ are congruent.

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35) The partial proof of Theorem 7-J is shown below. In Part 2, three parts of the proof are missing and marked with a question mark. Provide the missing information by stating the number of the step, and then the missing information for that step.

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Refer to Theorem 7-K and the corresponding figure shown below to answer the next three questions.

36) What can be stated as GIVEN based on the “if” part of the theorem and the labeled figure?

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37) What can be stated to PROVE based on the “then” part of the theorem and the labeled figure?

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38) There are two parts in proving Theorem 7-K. Complete the proof of this theorem on your own. Choose one part and give the statements and reasons for each step. You may type up the proof in a word processing document and attach it OR you may enter your steps in the textbox below.

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39) Copy or print Theorem 7-L and complete the proof by filling in the blanks. State the answers by giving the number of the statement, and then the answer.

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Refer to Theorem 7-M and the corresponding figure shown below to answer the next two questions.

40) What two statements can be made as being GIVEN based on the “if” part of the theorem and the labeled figure?

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41) What can be stated to PROVE based on the “then” part of the theorem and the labeled figure?

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Extended Assignment: Check with your instructor to see if he/she is interested in awarding extra credit to you for proving Theorem 7-M. If so, type up the formal proof in a word-processing document showing statements and reasons, and then send the proof to your instructor through VLA email.

Refer to the given information and the figure below to solve the next four problems.

42) Answer the following questions: (a) What kind of angles are angles GHD & HDE? (b) What is the measure of angle HDE? (c) What is the value of “x”?

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43) Answer the following questions: (a) What kind of angles are angles HDE and DEI? (b) What is the measure of angle DEI? (c) What is the value of “y”?

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44) Answer the following questions: (a) What is the measure of angle EIH? (b) What is the measure of angle JIL? (c) What is the value of “z”?

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45) Quadrilateral DEIH is a parallelogram. Answer the following questions: (a) What is the measure of angle IHD? (b) How many degrees do the four angles in a parallelogram total?

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Refer to the given information and the figure below to solve the next three problems.

46) What kind of angles are angles HJM, and JKN?

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47) Answer the following questions: (a) What equation may be written to solve for “x”? (b) What is the value of “x”?

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48) Answer the following questions: (a) What is the value of “y”? (b) Explain how you found the value of y?

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49) If you connect points A and B in the figure below, is line AB a transversal of the parallel lines? Check your answer by printing the picture and actually drawing the line. You may find some surprising results!

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