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12.07.2019 •
Mathematics
If p is the midpoint of st, sp=x+4and st=4x determine the length of st
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Ответ:
Second angle = x
Third angle = x+x+10 or 2x+10
X+10+x+2x +10=180
4x+20=180
Subtract 20 from both sides
4x=160
Divide both sides by 4
X=40
First angle =50
Second angle=40
Third angle =90