Предмет: Геометрия, автор: Slaimbol228

На клетчатой бумаге с размером клетки изображён круг. Найдите площадь закрашенного сектора. Ответ дайте в квадратных сантиметрах.

Приложения:

Ответы

Автор ответа: RTA1414

Ответ:0,25 см²

Объяснение:

S круга= πR², R=1/√π, Sкруга=π*(1/√π)²=π*1/π=1 (см²)

S закр.сектора= 1/4 * S круга= 1/4 * 1=1/4=0,25 (см²)

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: ленчик7

поставить глаголы в скобках в правильную форму:
I am writing ...(to inquire) about your advertisement in the May edition of "Around The World" magazine. I am interested in ....(to visit) Italy and would be grateful if you could ...(to send) me further details.
Your advertisement states that the price includes a return flight from Borispol Airport. Will the flight ...(to leave) in the morning or in the evening? The advertisement also mentions that the price includes seven nights in a five-star accommodation. Will I...(to have) my own room or will I have ...(to share)? In addition, ...(to regard) the meals that the price includes, I'd like...(to know) if all meals are included in the full cost or if the price only includes breakfast. Finally, could you...(to tell) me whether the tour includes ...(to visit) Vatican and if there will be time to go ...(to shop)?
I look forward to...(to hear) from you. Thank you in advance for your help.