Предмет: Геометрия, автор: dcbibigig

помогите пожалуйста даю все что есть

з поясненням

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Ответы

Автор ответа: ludmilaksenija2005

1

Объяснение:

∆B1CB2~∆A1CA2 - по 2 углам.

СВ1/СА1=В1В2/А1А2

СА1=СВ1-А1В1=m-n

m/(m-n)=k/A1A2

m•A1A2=k(m-n)

m•A1A2=km-kn

A1A2=(km-kn)/m

Приложения:

Smechariki67: Допоможіть будь ласка

Smechariki67: Диагональ осевого сечения цилиндра равна d и образует угол с образующей. Найдите площадь осевого сечения цилиндра.

sertaxi: Допоможи із геометрією

ludmilaksenija2005: образующая L равна высоте h ; d- диагональ осевого сечения ; ∠ между(d и L)=α ; Sосев сеч =D•h ; D - диаметр окружности . D=d•sinα ; Sосев сеч =h•d•sinα

sertaxi: Допоможи із геометрією

sertaxi: Завдання у профілі

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