maTematika 7
maTematika 7
maTematika 7
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24. samkuTxedis erT wverosTan mdebare Siga da gare kuTxis biseqtrisebi qmnian 90°-iankuTxes, e.i. saZiebeli kuTxea 50°.25. BC=CD, e.i. ∠CBD=∠CDB, magram ∠CDB=∠ABD (AB||CD, BD mkveTia), e.i. ∠DBC=∠ABD.26. naxazidan Cans, rom ∆ABC-dan AC