Номер 90.Спасибо заранее.. Created by DoGe220. geometriya-ru

Номер 90.Спасибо заранее...

July 2022 1 11 Report

Номер 90.Спасибо заранее.

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Kазак BC=24 cm
cos A =0,75
AB = BC = 24 cm
AH = AB*cos A = 24*0,75 = 18 cm
AC = 2*AH = 36 cm
------------------
AC = 42 cm
cos A = 0,6
AH = AC/2 = 42/2 = 21 cm
AH/AB = cos A
AB = AH/cos A = 21/0,6 = 21*10/6 = 7*5 = 35 cm

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