Просто умножить на 2, потом 0 приписать
Применены : теорема синусов, табличное значение синуса, теорема Пифагора, определение синуса
1) 2 3/8 : 3 1/6 = 9,1 : х 2) 3 1/3 : 2 2/9 = 1,2 : х
2 3/8х = 3 1/6 * 9,1 3 1/3х = 2 2/9 * 1,2
2 3/8х = 19/6 * 91/10 3 1/3х = 20/9 * 12/10
19/3х = 1729/60 10/3х = 8/3
х = 1729/60 : 19/3 х = 8/3 : 10/3
х = 1729/60 * 3/19 х = 8/3 * 3/10
х = 91/20 = 4 11/20 х = 8/10
х = 4,55 х = 0,8
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