<PRE><B>Question 241215</B>
The second angle of a triangle is 30(degrees)less than the first angle.The third angle is twice the second angle. How large are the angles? This problem i really struggled on because i dont know how to write it out and solve it.
-------------
The 1st angle is d degrees
The 2nd angle is d - 30
The 3rd angle is 2*(d-30)
---------------
The sum is (always) 180º
d + d-30 + 2(d-30) = 180
4d - 90 = 180
4d = 270
d = 67.5º
2nd angle = 37.5º
3rd angle = 75º
</PRE>