LoveOhghost
LoveOhghost
04-01-2018
Mathematics
contestada
Help me please, It's not 20 or 75
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Аноним
Аноним
04-01-2018
A+B+C+D+E=540°
4X+5+7X+6X+10+5X-5+4X+10=540
26X = 520
X = 520 : 26 = 20°
E = 4X + 10 = 80 + 10 = 90 °
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