SOLUTION: A triangle has one angle that measures 74�. The second angle is half the measure of the first angle. What is the measure of the third angle?

Question 548233: A triangle has one angle that measures 74�. The second angle is half the measure of the first angle. What is the measure of the third angle?
Answer by mathie123(224) (Show Source): You can put this solution on YOUR website!
One important thing to remember is that all angles sum to 180 degrees.
Let x be the measure of the third angle.
Since the second angle is half of the first angle, this is just saying the second angle is

So we have the sum of all angles is 180:

Now just solve for x (I will let you do the rest, let me know if you are still unsure)
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