Предмет: Математика, автор: aleksandrovanastya65

Площадь кругового сектора радиуса 6 см равна 9пи сантиметров квадрате найдите Хорда стягивают щие дугу этого сектора

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Автор ответа: colesnic8706

S сектора=pR^2*n/360, где n градусная мера соответствующей дуги(или центрального угла)

pR^2*n/360=9p

36*n=9*360

n=90

L дуги=pR*n/180=p*6*90/180=3p

наконец-то конец поставь лайк за старания БЫСТРО!!!

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