Geometry: An Interactive Journey to Mastery

Solutions

9. D௘ͽ 7KHVORSHRIDC VRWKHVORSHRIUKPXVWEH^12 EHFDXVHWKHGLDJRQDOVRIDUKRPEXVDUH
   SHUSHQGLFXODU
   E௘ͽ 7KLVLVDOLQHRIVORSH^12 WKDWJRHVWKURXJKWKHPLGSRLQWRIDCͼ௘EHFDXVHWKHGLDJRQDOVELVHFW௘ͽZKLFK
   LVͼ௘௘ͽ6RWKHOLQHLVyx ^12 


10. 6HHFigure S.14.6
    L ++TPY~ TZWEHFDXVH$$ͼ௘ƒDQGVKDUHDQJOHT௘ͽ
    LL k EHFDXVHTP TZ
    LLLTY TWEHFDXVHk 
    LY TW YXDQGTY WXEHFDXVHRSSRVLWHVLGHVRID
    SDUDOOHORJUDPDUH#
    Y WX TY TW YXEHFDXVHDOJHEUD
    YLTWXYLVDUKRPEXVEHFDXVHDOOIRXUVLGHVDUHFRQJUXHQW
    Lesson 15


11. D௘ͽ $FXWHVFDOHQHZLWKODUJHVWDQJOHEHWZHHQVLGHVDQG
    E௘ͽ 2EWXVHVFDOHQHZLWKODUJHVWDQJOHEHWZHHQVLGHVDQG
    F௘ͽ 5LJKWVFDOHQHZLWKULJKWDQJOHRSSRVLWHVLGH
    G௘ͽ 7KLVWULDQJOHGRHVQRWH[LVW
    H௘ͽ 2EWXVHLVRVFHOHVZLWKREWXVHDQJOHRSSRVLWHVLGH

TP W

Y X

Z

Figure S.14.6