B, Ha, 3:1, no.tl, KO20 ? 6orlruoro (caoHa) -om 6olrurpo (urnur) -ylo 6olnuoe (xclnorHoe) -o€ npo, xopoueno (.upyra) qepe3, -eno Kpacxyro (nepvarry) KpacHoe (nonoreHue) xpacHufi (uapQ) cKBO3b qmo
50. llocrponrb roqKy nepeceqeHun L npnruofr s c nnocKocrbro; onpeAenhrb Bt4ANMocrb .{acrefi npnruorl, cqilTan nnocKocrb HenpospavHofr . 51. [-locrpofiTb nilHhto nepeceqeHmfi TpeyronbHuKoB 123 vr 456 n onpegenilrb t4x BU,qhMOCTb. 52. Haiaru paccrofiHt/e (d) or roqKn D 4o nnocxocla ABC. 53.. Onpegenhrb paccronHr4e (d) rvrexqy napanfleflbHbrMh nnocKocrnnlur o ra B. 54*. llocrpohrb nflocKocrb q (p, e), npoxognlt1yro qepe3 roqKy A r nepneuphKyrnpHyro K npnrvrofr s. 55. llocrpotlrb nnHtAL nepeceqeHnn rpaHefr nph3Mbt c nflocKocrsro o (p, A). 56. llpttueHeHmeM HoBoro oKpaHa, uahtn paccrofiHr4e (d) or BepuhHbt A nrpauugsrgo rpaHn BCT. 57. [locrponru cnoco6oM 3aMeHbr oKpaHoB npoeKqtah il HarypanbHurfr erg ceqeHhr nilpaMnAbrABCT nfiocKocrbro o (p, e). 58. Hafrrlt yron (q) Mexgy nnocKocrnrun 123 u 124. 59*
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