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Tasya [4]
3 years ago
9

Find the measurement of ∠D and ∠C

Mathematics
1 answer:
Shtirlitz [24]3 years ago
7 0

Answer:

∠D = 125° and ∠C = 55°

Step-by-step explanation:

We should first solve for variable x, which should give us angle C, and then solve for angle D.

  • 3x+15=180
  • 3x=165
  • x=55°

Thus ∠C = 55°

Knowing that supplementary angles add to 180°, we set up the equation:

  • 55+D=180
  • D=125°

Thus ∠D = 125°

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