a |
b |
3 |
a |
b |
π |
3 |
π |
3 |
π |
3 |
π |
6 |
a |
b |
3 |
3 |
π |
6 |
π |
6 |
π |
6 |
1 |
2 |
π |
3 |
π |
3 |
π |
2 |
π |
6 |
5π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
3 |
π |
3 |
π |
3 |
π |
3 |
π |
6 |
π |
3 |
π |
6 |
AB |
AC |
BC |
| ||
|
|
| ||
|
|
BC |
| ||||
|
|
| ||
2 |
A.等边三角形 | B.等腰非直角三角形 |
C.非等腰三角形 | D.等腰直角三角形 |
AB |
AC |
AB |
AC |
π |
2 |
OA |
OB |
OA |
OB |
a |
a |
m |
n |
m |
n |
A.
| B.
| C.
| D.
|
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