x |
2 |
y |
3 |
y+z |
5 |
x+y+z |
x |
x |
2 |
y |
3 |
y+z |
5 |
x |
2 |
y+z |
5 |
2 |
x |
5 |
y+z |
y+z |
x |
5 |
2 |
x+y+z |
x |
5+2 |
2 |
x+y+z |
x |
7 |
2 |
a |
3 |
b |
4 |
a |
a+b |
a |
b |
a+b |
b |
A.a=3,b=6,c=2,d=4 | B.a=
| ||||||||||
C.a=
| D.a=1,b=
|
AB |
DE |
BC |
EF |
AB |
DE |
BC |
EF |
AD |
AB |
1 |
3 |
A.2cm | B.4cm | C.6cm | D.8cm |
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