Ответ:
sin60°= 120/x
✓3/2= 120/x
x=2•120 /✓3
x= 240✓3/ 3
x=80✓3м
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Ответ:
sin60°= 120/x
✓3/2= 120/x
x=2•120 /✓3
x= 240✓3/ 3
x=80✓3м