Estefaniaml98 Estefaniaml98
  • 27-04-2017
  • Mathematics
contestada

Given: tangent to Circle O.

If m C = 57°, then m BDR =

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treypad2702
treypad2702 treypad2702
  • 27-04-2017
∠BCD = 57°
∴ ∠BDR = ∠BCD = 57° (angle that meets the chord and the tangent is equi-angular to the angle at the alternate segment)
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