OA |
OB |
OC |
OA |
OB |
OC |
OA |
OC |
OB |
OC |
CA |
CB |
OA |
OB |
OC |
CA |
CB |
(
|
|
1+2cos60°+1 |
3 |
3 |
a |
a |
b |
a |
b |
5 |
b |
A.20 | B.40 | C.2
| D.2
|
AB |
a |
AC |
b |
AM |
a |
b |
MA2 |
MB2 |
MC2 |
A.
| B.
| C.
| D.
|
a |
a |
A.1 | B.
| C.±1 | D.±
|
a |
b |
a |
b |
a |
b |
a |
b |
FA |
FB |
FC |
FA |
FB |
FC |
A.3 | B.4 | C.6 | D.9 |
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