shakti82 shakti82
  • 20-11-2021
  • Mathematics
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In the given figure what is the measure of arc BC

In the given figure what is the measure of arc BC class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 20-11-2021

Answer:

  • 48°

Step-by-step explanation:

Both angles A and D intercept same arc BC, hence congruent:

  • 7x - 4 = 2x + 16
  • 7x - 2x = 16 + 4
  • 5x = 20
  • x = 4

Arc measure is twice the measure of inscribed angle:

  • mBC = 2(7*4 - 4) = 48
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