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Three angles add up to 180 degrees, angle one has a measure of 4x+8, angle two has a measure of 8x+3 and angle three has a measure of 9x+3.
Given that the sum of the angles is 180 degrees, what is the measure of angle one? Round your answer to the hundredths place IE 79.50.

1 Answer

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Answer:

  • 39.60°

Explanation:

The sum of three angles is 180 degrees.

Show this as equation and solve for x:

  • 4x + 8 + 8x + 3 + 9x + 3 = 180
  • 21x + 14 = 180
  • 21x = 166
  • x = 166/21
  • x = 7.90 (rounded)

Angle one is:

  • 4*7.90 + 8 = 39.60

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