SOLUTION: How do I solve the following: The three angles in a triangle always add up to 180 degrees. If one angle in a triangle is 72 degrees and the second is 2 times the third, what ar

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Question 396810: How do I solve the following:
The three angles in a triangle always add up to 180 degrees. If one angle in a triangle is 72 degrees and the second is 2 times the third, what are the angles?
Found 2 solutions by stanbon, ewatrrr:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The three angles in a triangle always add up to 180 degrees. If one angle in a triangle is 72 degrees and the second is 2 times the third, what are the angles?
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Let the third be "x".
Then the 2nd is "2x".
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Equation:
x + 2x + 72 = 180
3x = 108
x = 36 degrees
2x = 72 degree
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Cheers,
Stan H.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

the second is 2 times the third

Let x and 2x represent the third and second angles respectively

question states***

72° + 2x + x = 180°

solving for x

     3x = 108°

      x = 36°, the second angle.  The third is 72°  (2*36°)



CHECKING our Anwer

  72° + 36° + 72° = 180°