Pre-Calculus Homework Solutions 105

Pre-Calculus Homework Solutions 105 - 12. LX is opposite...

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12. L w X w is opposite / LYX and L w Y w is opposite / LXY ,so L w X w > L w Y w . 13. L w S w is opposite / LRS and L w R w is opposite / LSR ,so L w S w > L w R w . 14. L w Y w is opposite / LWY and L w W w is opposite / LYW , so L w Y w > L w W w . 15. The base angles of an isosceles triangle are congruent. So / LNM > / MLN .From the figure, m / MLN 5 20. So m / LNM 5 20. 16. m / LNM 1 m / MLN 1 m / M 5 ¬ 180 20 1 20 1 m / M 5 ¬ 180 m / M 5 ¬ 140 17. The base angles of an isosceles triangle are congruent, so m / LKN 5 ¬ m / LNK. m / LKN 1 m / LNK 1 m / KLN 5 ¬ 180 m / LKN 1 m / LKN 1 18 5 ¬ 180 2 m / LKN 5 ¬ 162 m / LKN 5 ¬ 81 18. m / JKN 5 ¬ m / JKL 1 m / LKN 130 5 ¬ m / JKL 1 81 49 5 ¬ m / JKL m / JKL 1 m / JLK 1 m / J 5 ¬ 180 49 1 25 1 m / J 5 ¬ 180 m / J 5 ¬ 106 19. The base angles of n DFG are congruent, so / DFG > / D . m / DFG 5 m / D 5 28 20. m / DGF 1 m / D 1 m / DFG 5 ¬ 180 28 1 28 1 m / DGF 5 ¬ 180 m / DGF 5 ¬ 124 21. / FGH and / DGF are a linear pair. m
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