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Ratios, Proportions, and Similarity

Ratios, Proportions, and Similarity. Eleanor Roosevelt High School Chin-Sung Lin. ERHS Math Geometry. Ratio and Proportion. Mr. Chin-Sung Lin. ERHS Math Geometry. A ratio is a comparison by division of two quantities that have the same units of measurement

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Jeopardy

Jeopardy. Triangle Inequality Theorems. Angle Side Relationships. Hinge Theorem. Misc. Converse of Hinge Theorem. $100. $100. $100. $100. $100. $200. $200. $200. $200. $200. $300. $300. $300. $300. $300. $400. $400. $400. $400. $400. $500. $500. $500. $500. $500.

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19.5.1 ??????

19.5.1 ??????. ????. ? ?. ???. ???. ?????. ? ?. ????????. ????????????????????????. ????. ? ?. ???. ???. ?????. ? ?. ??. ??????. ????? ? ??. ? . ??. ?? ?? ??? ??? ?? ??? ?????? ??. ??. D. A. B. C. (1) ????????. ???????? AD ?BC. ????????. ????. ??. A. D. ?. ?. ?.

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?????? ???

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Chapter Three

Chapter Three. Building Geometry Solid. Incidence Axioms. I-1: For every point P and for every point Q not equal to P there exists a unique line l incident with P and Q. I-2: For every line l there exist at least two distinct points that are incident with l .

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???????

???????. ???:???. ???? : ????????????. ???? : ????????????. A. D. A. D. B. B. C. C. ????????. ?. 2.???????????. ? 1 ?? AD // BC?AB // CD ? ??? ABCD ??????. ?2?? AD // BC?AD = BC ? ??? ABCD ??????. ????. ? 3 ?? AD = BC ?AB = DC

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5.2.2 ??? ???

5.2.2 ??? ???. ????. 1 ? ??????? ,________ ???? ???. 2 ? ?? : ???? AB, ? P ??? AB ? , ?????????? P ??? CD, ? CD?AB. 3 ? ?? : ?????????????? ???? , ????????? ????? ?. ???? --- ????. ???? 1: ???????????? , ??????? , ????????? .

315 views • 15 slides

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321 views • 13 slides

Chapter Three

Chapter Three. Building Geometry Solid. Incidence Axioms. I-1: For every point P and for every point Q not equal to P there exists a unique line l incident with P and Q. I-2: For every line l there exist at least two distinct points that are incident with l .

190 views • 12 slides

?? (2)

?? (2). A. D. B. C. ???????? ?. 1 ???. ?????????????. 2 ??????????????????????. A. D. B. C. ???????????????????. ????? : ??? ABCD ?? AD?BC ?? B ? ? C . ??? AB ? DC. ??. ??. ??. A. D. B. C. ? D ? DE?AB ?? BC ? E ?. E. ?? DEC=?B. ??B=?C ? ? ? C=?DEC.?DE=DC.

234 views • 12 slides