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Василий Юртайкин
ОП
Олег Писарев
X+5X = 1800
6X = 180 ==>> x = 300
sin 300 = 1/2 = h/6 ==>> h= 3;
S= a*h = AD * h= 8 * 3 = 24;
S = 24
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X+5X = 1800
6X = 180 ==>> x = 300
sin 300 = 1/2 = h/6 ==>> h= 3;
S= a*h = AD * h= 8 * 3 = 24;
S = 24