Odpowiedź:
Szczegółowe wyjaśnienie:
[tex]|AB| = x\\\\\frac{|OA|}{|OC|} = \frac{|AB|}{|CD|}\\ \\\\\frac{15}{9} = \frac{x}{x - 8} \\\\9x = 15(x - 8)\\\\9x = 15x - 120\\\\-6x = -120 //(-6)\\\\x = 20\\\\[/tex]
|AB| = x = 20
|CD| = 8 - x = 12
|OB| = |OA| + |AB|
|OB| = 15 + 20
|OB| = 35
|OD| = |OC| + |CD|
|OD| = 9 + 12
|OD| = 21
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Odpowiedź:
Szczegółowe wyjaśnienie:
[tex]|AB| = x\\\\\frac{|OA|}{|OC|} = \frac{|AB|}{|CD|}\\ \\\\\frac{15}{9} = \frac{x}{x - 8} \\\\9x = 15(x - 8)\\\\9x = 15x - 120\\\\-6x = -120 //(-6)\\\\x = 20\\\\[/tex]
|AB| = x = 20
|CD| = 8 - x = 12
|OB| = |OA| + |AB|
|OB| = 15 + 20
|OB| = 35
|OD| = |OC| + |CD|
|OD| = 9 + 12
|OD| = 21