Диагональ правильной четырехугольной призмы наклонена к плоскости основания под углом 30 найти боковое ребро если диагональ призмы равна 8
Hwicwhen575
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26.04.2019 04:31
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Объяснение:
H-боковое ребро =?
d-диагональ призмы d=8
H/8=sin30° , sin30°=1/2
H=8*1/2=4
H=4 j(dliny)