October 2018 1 1K Report

Proste AB i A1B1 przecięto prostymi równoległymi AA1, BB1, CC1,jak na rysunku.

Link do rysunku:

http://m.onet.pl/_m/54907309cc65c7298c8e96436bc7b655,62,37.jpg

Oblicz:

a) | OC1| , jeśli | OA1 | = 1,8 , | AC1 | = 11,2 , | OC | = 5,4

b) | OB | ,jeśli | CC1| = 40 , | BB1 | = 56 , | C1B | = 120


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