princeevee
princeevee
20-03-2017
Mathematics
contestada
can someone help please?
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friedalafiesta
friedalafiesta
20-03-2017
Since a triangle's angles add to be 180 degrees, you need to find the measure of the third angle.
180-55-65= 60 degrees
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The equation would be 2x+30=60
2x=30
x=15
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