Предмет: Геометрия, автор: evasold76961

2. Знайти радіус кола, якщо його довжина С = 18 пі см.

Ответы

Автор ответа: zmeura1204

1

Відповідь:
9см

Розв'язання:
С=2πR;
R=C/2π=18π/2π=9см

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