darrenjiang051 darrenjiang051
  • 21-10-2022
  • Mathematics
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In ΔCDE, \text{m}\angle C = (x-4)^{\circ}m∠C=(x−4)
∘
, \text{m}\angle D = (9x+4)^{\circ}m∠D=(9x+4)
∘
, and \text{m}\angle E = (2x+12)^{\circ}m∠E=(2x+12)
∘
. Find \text{m}\angle D.m∠D.

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