Вычисли угол между прямыми. AB\parallel PN, AB∸PF, \angle FPN=42\degree. AB\parallel PN, AB∸PF, \angle FPN=124\degree. AB\parallel PN, AB∸PF, \angle FPN=90\degree. Ответ. \angle (AB;PF)= \degree. \angle (AB;PF)= \degree. \angle (AB;PF)= \degree.
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Вычисли угол между прямыми.

  1. \(AB\parallel PN\) , \(AB∸PF\) , \(\angle FPN=42\degree\) .
  2. \(AB\parallel PN\) , \(AB∸PF\) , \(\angle FPN=124\degree\) .
  3. \(AB\parallel PN\) , \(AB∸PF\) , \(\angle FPN=90\degree\) .

Ответ.

  1. \(\angle (AB;PF)=\) [ ] \(\degree\) .
  2. \(\angle (AB;PF)=\) [ ] \(\degree\) .
  3. \(\angle (AB;PF)=\) [ ] \(\degree\) .