Ответ:
12
Объяснение:
[tex]\frac{AB}{A_{1} B_{1} } = \frac{AC}{A_{1} C_{1}} \\A_{1} B_{1} = \frac{AB*A_{1} C_{1}}{AC} = \frac{20*15}{25}=12[/tex]
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Ответ:
12
Объяснение:
[tex]\frac{AB}{A_{1} B_{1} } = \frac{AC}{A_{1} C_{1}} \\A_{1} B_{1} = \frac{AB*A_{1} C_{1}}{AC} = \frac{20*15}{25}=12[/tex]