Предмет: Алгебра, автор: Shkedebe3

длина и площадь окружности, помогите пожалуйста, <3

Приложения:

Shkedebe3: Те кто ответит на мой вопрос, буду уважать весь год:)

Shkedebe3: Заранее большое вам спасибо<3

Ответы

Автор ответа: denisbocharov1

С=2ПR=ПD

S=ПR^2

1)3.14x0.3=0.942см

2)2x3.14x1.3=8,164дм

3)3,14х0,3х0,3=0,2826 дм2

4)3,14х(2,2:2)x(2.2:2)=3,7994 см2

5) 3,14х0,6х0,6=1,1304см2

3,14х1,2=3,768см

Автор ответа: AlexGoal

1) C=пd=3,14•0,3=0,942 см
2) C=2пr=2•3,14•13=81,64 см
3) S=пr^2=3,14•3^2=28,26 см
4) S=пr^2=3,14•1,1^2=3,7994 см
5) S=пr^2=3,14•0,6^2=1,1304 см
C=пd=3,14•1,2=3,768

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