Pre-Calculus Homework Solutions 48

Pre-Calculus Homework Solutions 48 - 48 Given AC Prove AB...

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48. Given: AC 5 BD Prove: AB 5 CD Proof: 49. / ONM , / MNR 50. / PMQ > / QMN 51. N or R 52. / POQ , / QON , / NOM , / MOP 53. obtuse 54. Sample answer: NR #\$ and NP #\$ 55. / NML , / NMP , / NMO , / RNM , / ONM Chapter 2 Study Guide and Review Page 115 Vocabulary and Concept Check 1. conjecture 2. truth value 3. compound 4. and 5. hypothesis 6. converse 7. Postulates 8. informal proof Pages 115–120 Lesson-by-Lesson Review 9. m / A 1 m / B 5 180 10. Y is the midpoint of X w Z w . 11. LMNO is a square. 12. 2 1 . 0 and in a right triangle with right angle C , a 2 1 b 2 5 c 2 .; false, because p is false and q is true. 13. In a right triangle with right angle C , a 2 1 b 2 5 c 2 or the sum of the measures of two supplementary angles is 180.; true, because q is true and r is true. 14. The sum of the measures of two supplementary angles is 180 and 2 1 . 0.; false, because r is true and p is false. 15.
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