a |
1 |
3 |
b |
3 |
2 |
a |
b |
A.
| B.
| C.
| D.
|
a |
1 |
3 |
b |
3 |
2 |
a |
b |
1 |
3 |
3 |
2 |
1 |
2 |
π |
6 |
AB |
DC |
AB |
a |
AD |
b |
OC |
A.
| B.
| C.
| D.
|
AP |
3 |
2 |
PB |
a |
|b| |
a |
a |
b |
b |
A.(4,8) | B.(-4,8) | C.(-4,-8) | D.(8,4) |
a |
b |
c |
a |
c |
5 |
c |
a |
c |
b |
| ||
2 |
a |
b |
a |
b |
a |
b |
a |
e |
e |
b |
e |
e |
e |
e |
a |
b |
a |
b |
a |
b |
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