Предмет: Геометрия, автор: tosharumyantsev02

Площадь осевого сечения цилиндра 8 см², площадь основания 12 см². Найдите площадь боковой поверхности цилиндра. ​

Ответы

Автор ответа: pavel1367
1

Объяснение:

Решение: d*h=8 м2

пd^2/4=12м2

п=3,14

d=корень (4*12/п) =3,9м

h=8/3.9=2,046м

Хорда на расстоянии 1 метра=2*корень (1,95^2-1^2)=3,348м

Площадь=3,348*2,046=6,85м2.


tosharumyantsev02: там 8см или метров?
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