Geometry Chapter 2 Exam Section: 5 points each (vocab is worth 7 points) Basic: 1 Correct: 3 points Proficient: 2 Correct: 4 points Advanced: 3 Correct: 6 points Name____________________ Date ___________ Period ___ MUST SHOW ALL WORK FOR FULL CREDIT! Section 1: Conditional Statements – B. Identify the hypothesis (double underline) and the conclusion (single underline) of the conditional. If you like chocolate, then you like chocolate cake. P. Write the converse of the conditional. If two angles both are 23 degrees, then the angles are congruent. A. Determine the truth value (true/false) of the original and the converse of the conditional given in part P. Original: ________ Converse: _______ Section 2: Reasoning in Algebra –(one point per line, 6 total) Fill in the reason that justifies each step. (not to scale!!!) Given: AD is 78 units long. AC = 4x CD = 2x+12, AD = 78 a. _______________________________________ AC + CD = AD b. _______________________________________ 4x + 2x + 12 = 78 c. _______________________________________ 6x +12 = 78 d. _______________________________________ 6x = 66 e. _______________________________________ x = 11 f. _______________________________________ Section 3: Reasoning in Algebra – B. Use the given property to complete the statement. Substitution Property If a = b and r + b = 9, then _________________________ P. Name the justification (property) for the following statement. DF = DF _________________________. A. Name the justification for the following statement. If s = y and s =j, then y = j. _________________________ Section 4: Proving Angles Congruent – B. Use the diagram above to find the measure of <DOF P. Find the value of x. A. Find the value of x. Section 5: Proving Angles Congruent – B. Solve for x. P. Find the measure of <A described below. <A and <B are supplementary. m<A = 2x +6 and m<B = 4x-9. A. If the complement of <D is 27, then what is the measure of the supplement of <D? Section 6: Vocabulary – ____ Conditional A. “then” part of the sentence ____ Hypothesis B. true or false answer to a conditional statement ____ Conclusion C. if-then statement ____ Truth Value D. If a = b, then b = a ____ Converse E. “if” part of the sentence ____ Symmetric Property F. A statement that you can prove true. ____ Theorem G. a conditional statement with the hypothesis and conclusion switched.