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1.2<br />
cvladiani gamosaxuleba. gantoleba.<br />
gantolebis saSualebiT amocanebis amoxsna<br />
axla cvladiani gamosaxuleba, gantoleba da gantolebis saSualebiT<br />
amocanebis amoxsna gavixsenoT.<br />
suraTze samkuTxedia gamosaxuli. vTqvaT,<br />
cnobilia, rom misi erT-erTi gverdi 12 sm-ia,<br />
12 sm 5 sm meore _ 5 sm. Tu mesame gverdis sigrZis ricxviT<br />
mniSvnelobas x-iT aRvniSnavT, maSin samkuTxedis<br />
perimetrisTvis gvaqvs cvladiani gamosaxuleba:<br />
12+5+x.<br />
SeiZleba Tu ara am gamosaxulebaSi x nebismieri ricxvi iyos<br />
gavixsenoT samkuTxedis erT-erTi Tviseba: nebismieri ori gverdis jami<br />
metia mesame gverdze.<br />
imedia, ar gagiWirdebaT dadgena, rom x naklebia 17-ze da metia 7-ze.<br />
magaliTad, Tu x=10, maSin<br />
12+5+x=27.<br />
27 aris mocemuli cvladiani gamosaxulebis mniSvneloba, roca x=10.<br />
vTqvaT, axla cnobilia samkuTxedis perimetri — 26 sm da mxolod ori<br />
gverdi: 5 sm da 12 sm. samkuTxedis mesame gverds vipoviT, Tu amovxsniT<br />
gantolebas:<br />
12+5+x=26.<br />
axla is igiveobebic gavixsenoT, romelTa gamoyenebiT gamosaxulebebs<br />
gardavqmnidiT, vamartivebdiT (Semoklebuli gamravlebis formulebi).<br />
(a+b) 2 =a 2 +2ab+b 2 ; (a–b) 2 =a 2 –2ab+b 2 ; (a+b)(a–b)=a 2 –b 2 .<br />
B<br />
a<br />
C b H<br />
a–b<br />
E<br />
b<br />
A<br />
F<br />
L<br />
b<br />
G a–b D<br />
am igiveobebs geometriul warmodgenebsac vukav-<br />
Si reb diT. magaliTad, am suraTze ABCD kvadratia.<br />
SeadareT daStrixuli figuris da EBHL marTkuTxedis<br />
farTobebi. romeli igiveobis aRwera SeiZleba<br />
am Se da rebis safuZvel ze<br />
SevajamoT: gavixseneT gasul wels Seswavlili zogierTi sakiTxi.<br />
momavalSi sxva sakiTxebsac gavixsenebT.<br />
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