alexisl4809 alexisl4809
  • 21-05-2018
  • Mathematics
contestada

How to find x in a triangle with an exterior angle?

Respuesta :

notmer17
notmer17 notmer17
  • 21-05-2018
-say in the situation "C" was "X";  angle ∠C and ∠D are supplementary angles so ∠D-180=∠C
-all triangle, angles sums =180° so ∠A+∠B+∠C=180
-if the triangle were to be a right triangle you could use 30,60,90 or 45,45,90 but you need to know the measure of one of 2 of the angles
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