Question 334400
let second angle be x
the first angle will be x+6
the third angle = x+6+18
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Their sum =180 deg
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x+x+6+x+6+18=180
3x+30 =180
add -30
3x+30-30 = 180-30
3x=150
divide by 3
x= 50 deg
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First angle = 50+6= 56 deg
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Third angle = x+24= 50+6+18
=74
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CHECK 
50+56+74= 180