№4 постройте углы adn и ndb,если угол adn = 34 градусов,угол ndb = 120 градусов.какой может быть градусная мера угла adb?

B                                                                                         N

\                                                                                        /

  \                                                                                    /

    \   120 °                                                                    /  34°

      \. N                                           D / А

   D      .   34°                                                            \

              .                                                                    \

                  .                                                                  \  

                      .А                                                              \   B

<ADB=120° + 34° = 154°                                          <ADB=120° - 34° = 86°