LV.NOL.2018.7.3 lv
Aprēķināt \(\sphericalangle BCD+\sphericalangle DEF+\sphericalangle FGH\) (skat. 8.att.), ja \(AB \parallel GH, \sphericalangle ABC=120^{\circ}, \sphericalangle CDE=90^{\circ}\) un \(\sphericalangle EFG=60^{\circ}\).
Aprēķināt \(\sphericalangle BCD+\sphericalangle DEF+\sphericalangle FGH\) (skat. 8.att.), ja \(AB \parallel GH, \sphericalangle ABC=120^{\circ}, \sphericalangle CDE=90^{\circ}\) un \(\sphericalangle EFG=60^{\circ}\).