Geometry: An Interactive Journey to Mastery

Solutions

3. D௘ A C

DB

Figure S.2.1

 E௘ A C

DFigure S.2.2B

 F௘ A

CD

B

Figure S.2.3

4. D௘ͽ <HV7KH\DOOOLHRQWKHVKDGHGSODQH
   E௘ͽ <HV7KH\DOOOLHRQWKHZKLWHSODQH
   F௘ͽ <HV$Q\WKUHHSRLQWVDUHFRSODQDUͼ௘7KHSODQHGRHVQ¶WKDSSHQWREHVKRZQLQWKHSLFWXUH௘ͽ
   G௘ͽ <HV7KH\DOOOLHRQDFRPPRQOLQH
   H௘ͽ ,QWXLWLYHO\LWVHHPVWKDWWKHDQVZHULV\HV


5. BC = 4 if we have the following.

BC = 14 if instead we have the following.

6. 1RDVWKHIROORZLQJGLDJUDPVKRZV

A

M

Figure S.2.6B

ACB

5 9

Figure S.2.4

CBA

95

Figure S.2.5