1. Угол с прямоугольного треугольника ABC равен 30°. Разность длин гипотенузы и катета АВ равна 5 см.
Найдите гипотенузу.
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   21 324    :  37                                           216724     : 42

     185                                             210           

            576 ( остача 12)                       516( в остатку 4) 

        282                                                             67

        259                                                             42

          234                                                           252

          222                                                           252

            12                                                                 4

     21 324    :  37                                           216724     : 42

     185                                             210           

            576 ( остача 12)                       516( в остатку 4) 

        282                                                             67

        259                                                             42

          234                                                           252

          222                                                           252

            12                                                                 4