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BeHappyy
@BeHappyy
July 2022
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Пожааалуйста, ооочень срочно надо
в треугольнике ABC, AC=BC высота CH равна 7 АВ=48. Найдите sinA
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superzoryanka
АС=СВ => треугольник равнобедренный =>АН=НВ=48/2=24cм
За теоремой Пифагора АС^2=AH^2+HC^2=24^2+7^2=625 => AC=25
sin A= CH/CA=7/25=0.28
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За теоремой Пифагора АС^2=AH^2+HC^2=24^2+7^2=625 => AC=25
sin A= CH/CA=7/25=0.28