AB |
DC) |
BC |
AD |
A.41 | B.-41 | C.9 | D.-9 |
DC |
AB |
OB |
OA |
BC |
AD |
OD |
OA |
OB |
OA |
AB |
DC) |
BC |
AD |
OB |
OA |
OB |
OA |
OA |
OB |
5 |
2 |
4 |
2 |
a1 |
a2 |
a3 |
c1 |
c2 |
c3 |
ai |
aj |
ck |
cl |
PA |
PB |
2 |
2 |
FM |
FN |
7
| ||
5 |
AC |
BE |
1 |
2 |
1 |
2 |
1 |
4 |
PB |
PC |
P0B |
P0C |
A.∠ABC=90° | B.∠BAC=90° | C.AB=AC | D.AC=BC |
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