# 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

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by sararisa

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by sararisa

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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

then the first angle will e 2a

the third angle = a+2a+18

= 3a+18

The sum of all the angles of a triangle is 180

so , a+2a+(3a+18)=180

6a+18=180

6a=180-18

=162

a=162/6

Therefore a=27

then the