4. Given: 25 and 27 are vertical angles 9. .5 8. Prove: 25 7 Statements Reasons 25 and 28 form a linear pair 27 and 28 form a linear pair Given from the diagram 25 and 28 are supplementary 27 and 28 are supplementary m25 + mz8 = 180° m27 + m28 = 180° m25 + m28 = m27+ m28 m25 = m27 * Definition of a Linear Pair *Reflexive Property * Definition of Supplementary Angles *Definition of Complementary Angles *Transitive Property *Subtraction Property of Equality

Which angles are on which line? If Im working with the principe that two or more angles on the same straight line will add up to 180º, (as I did I with angle g), then which measurements will give me the correct answers for angles a through f?

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TEACHER What is the approximate distance between points (-7,2) and (11,-5)? a) V11 units b) v373 units 19.313 c) V61 units 3.31666 go to station 2 go to station 9 7.810 go to station 5 d) V37 units (6.08 go to station 7 e) v5 units go to station 8 2.236 s Math SECOND EDITION GRADES S-12 Alyn and acon SYBEX Tossey JB 0-326 KOSSEY e Borba, Ed.D. D ND HOBBES DARLING ESS GOES "BOINK RABY-SAT rity KLUTZ re C 4E