Предмет: Геометрия, автор: tilo4ikluckyvipers

3.Определите расположение двух окружностей по радиусам и
расстоянию между центрами: R=4см, r=3см, 9см;

Ответы

Автор ответа: mansurother
8

Ответ:

R1 = 4см

R2 = 3см

если 9 см это расстояние между ними, тогда

4+3=7 (см) - сумма двух радиусов а точнее такое расстояние было бы если радиусы были бы прикосновены.

есть теорема: Если расстояние между центрами двух окружностей больше суммы их радиусов или меньше их разности, то эти окружности не имеют общих точек.

Следовательно 9-7=2 (см) - расстояние между двумя окружностями.

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A)  anything constructive

B) at a private secondary school

C) but be turned to law 

D) difficult starting a new job

E) I don’t want to go in today

F) I would be good at the job

G) I’'d always wanted to do

H) in different types of schools and possibly teach overseas

I) so much variety, freedom and creativity

J) the prospect of earning all that money as a lawyer

K) to gee if that made a difference to my job satisfaction