Geometry: An Interactive Journey to Mastery

(Greg DeLong) #1

Solutions



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  2. D௘ͽ 6RPHWKLQJOLNHWKHIROORZLQJZRQ¶WIRUPWKHGLDJRQDOVRIDNLWH
    


Figure S.12.2
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BDELVHFWLQJAC
L /DEHOOHQJWKVxyzDVVKRZQLQFigure S.12.3QRWLQJWKDW
ACLVELVHFWHG
LL AB xy ^22 DQGCB xy ^22 EHFDXVHRIWKH
3\WKDJRUHDQWKHRUHP
LLL AD x^22 z DQGCD x^22 z EHFDXVHRIWKH3\WKDJRUHDQWKHRUHP
LY :HKDYHDNLWHEHFDXVHQHLJKERULQJHGJHVDUHFRQJUXHQW


  1. D௘ͽ 6HHFigure S.12.4
    E௘ͽ ,IWKHUDGLXVRIWKHFLUFOHZHUHVXFKWKDWWKH
    FLUFOHMXVWWRXFKHVWKHHTXLGLVWDQWOLQHDWRQHSRLQW
    WKHQWKHORFDWLRQRIWKHWUHDVXUHZRXOGEHFOHDU


A


R


aa

bb

P


B


Figure S.12.1

xx

y

B


AC


D


z

Figure S.12.3

T


S


one of these two places
R

Figure S.12.4
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