<PRE><B>Question 1054081</B>
x+60 second angle: 1st angle + 60
3x-20 3rd angle: 20 less than 3 times first angle
:
Theorem: The sum of the three angles in a triangle is always 180º
Thus:
x+x+60+3x-20 = 180
5x+40 = 180
5x = 140
x = 28
:
Angle 1: 28
Angle 2: 28+60 = 88
Angle 3: 3(28)-20 = 64
Triangle: 28+88+64 = 180 Correct
:
John</PRE>