Seudónimo Seudónimo
  • 28-03-2017
  • Mathematics
contestada

A quadrilateral has angles that measure 68°, 81°, and 90°. What is the measure of the fourth angle?

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Аноним Аноним
  • 28-03-2017
121, you find the angle by adding the other three angles then subtracting the result from that, from 360,  68+81+90=239    360-239=121.
~Karma
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