Matematyka 7
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140 3. TRÓJKĄTY<br />
12 <br />
<br />
<br />
13 ABC<br />
CDx.<br />
14 ABC<br />
CDα = β.<br />
15 kl <br />
AP = PB CP = PD .<br />
16 ABCBCP<br />
AP + BC AB + AC .<br />
17 ABC -<br />
ABK<br />
BLC<br />
AL = CK .<br />
18 ABCPAPB -<br />
ACB.