Вопрос школьника по предмету Геометрия
найти боковую поверхность цилиндра, если площадь её осевого сечения равна 10
Ответ учителя по предмету Геометрия
Ответ:
S бок. пов=10π
Объяснение:
осевое сечение цилиндра — прямоугольник со сторонами
d — диаметр основания цилиндра
h — высота цилиндра
S сечения =d×h=10
S бок.пов=2πrh=π×(d×h)=π×10
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