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2014-06-17T14:19:32+03:00
Ma=(a+b)/2=90
a+b=2*90=180

ma=(b+c)/2=99
b+c=99*2=198

ma=(a+c)/2=93
a+c=2*93=186

2a+2b+2c=180+198+186
2(a+b+c)=564
a+b+c=282

c=282-180
c=102

a=282-198
a=84

b=282-186
b=96
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