a) Obw.20
2+4+3,5+0,5=10
20-10=10
10:2=5. |AB|=5j.
b)Obw.20
3+5+4=12
20-12=8
8:2=4. |CD|=4j
c)Obw.20
5+2+5+2=14
20-14=6
6:2=3. |EF|=3j
(j=jednostki)
jest to dobrze na 100%
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a) Obw.20
2+4+3,5+0,5=10
20-10=10
10:2=5. |AB|=5j.
b)Obw.20
3+5+4=12
20-12=8
8:2=4. |CD|=4j
c)Obw.20
5+2+5+2=14
20-14=6
6:2=3. |EF|=3j
(j=jednostki)
jest to dobrze na 100%