Предмет: Геометрия, автор: linanazuta

СРОЧНО!!!Знайти площу комп'ютерноГО диска за малюнком:

Приложения:

Ответы

Автор ответа: svetlanabaku

Ответ: S = πr² = 3600π мм² = 11304 мм²

(если в см² , то 0,36π см² = 1,13 см²)

Объяснение: если через радиус тогда надо 120 - 16= 104 мм , 104 : 2 = 52 мм , 16 : 2 = 8 мм , 52 + 8 = 60 мм

60 мм - радиус

S = πr² = 3600π мм² = 11304 мм²

(если в см² , то 0,36π см² = 1,13 см²)

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