Dam naj...
Oblicz x jeśli BD || CE
|OD| / |BD| = |EO| / |CE|
3 / 4 = 3 + x / 10
30 = 4 ( 3 + x )
30 = 12 + 4x | - 12
18 = 4x | : 4
x = 18/4 = 9/2 = 4,5
Pozdrawiam! q ;
.
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|OD| / |BD| = |EO| / |CE|
3 / 4 = 3 + x / 10
30 = 4 ( 3 + x )
30 = 12 + 4x | - 12
18 = 4x | : 4
x = 18/4 = 9/2 = 4,5
Pozdrawiam! q ;
.