1.

The first angle of the triangle is double its second angle. the third angle is 18 degree more than the sum of first two angles. Find the three angles of the triangle

Answer» SECOND angle=x
first angle=2x
sum=2x+x=3x
third angle=3x+18
total angle=180
3x+18+2x+x=180
6x+18=180
6x=162
x=162/6=27
angles= 27,54,99


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