3 |
5 |
1 |
2 |
1 |
2 |
BE |
HA |
PE |
PH |
11-t |
t-7 |
EP |
3-EP |
3(11-t) |
4 |
1 |
2 |
3(11-t) |
4 |
3 |
8 |
3 |
8 |
3 |
8 |
1 |
2 |
5 | ||
1+
|
10 |
3 |
10 |
3 |
5 |
3 |
1 |
2 |
5 |
3 |
5 |
6 |
5 |
6 |
5 |
3 |
5 |
2 |
5 |
3 |
A.30° | B.22.5° | C.15° | D.10° |
1 |
2 |
1 |
2 |
A.菱形 |
B.对角线相互垂直的四边形 |
C.正方形 |
D.对角线相等的四边形 |
A.6cm | B.4cm | C.2cm | D.1cm |
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