Предмет: Геометрия, автор: anisimov322

Ребят, помогите пожалуйста с геометрией

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Ответы

Автор ответа: Vas61

Ответ:

172,8 см²

Объяснение:

весь круг - это 360° его площадь S=πR²=3·8²=192 см²

составим пропорцию 360° - 192

324° - х

х=324·192÷360=172,8 см²

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