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A triangle has two angles that are 68 degrees and 78 degrees. What is the third angle

1 Answer

12 votes

Answer:

36°

Explanation:

The sum of interior angles in a triangle is equal to 180°.

Two of the angle measures are given already so all we need to do is to add up the measures.

  • Let x represent the missing angle:

68 + 78 + x = 180

  • Add measures.

144 + x = 180

  • Subtract 144 from both sides.

x = 36°

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