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  • 11-11-2019
  • Mathematics
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musiclover10045
musiclover10045 musiclover10045
  • 11-11-2019

Angle 3 and 4 are supplementary angles and create a straight line.

This means when added together they need to equal 180 degrees.

Angle 3 = 180 - angle 4

Angle 3 = 180-40 = 140 degrees.

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