madisonthedoll
madisonthedoll
25-08-2017
Mathematics
contestada
10th grade Geometry question
Respuesta :
mreijepatmat
mreijepatmat
26-08-2017
1) Central angle BOA (D)= 250° → and BOA (C) = 360-250 =110°
Then Arc BA = 110°
mes Angle BDA = mes Arc BA/2 and Angle BDA = 110°/2 = 55°
2) mes Angle BCA = (Arc BDA - Arc BA)/2 = (250° - 110°)/2 = 70°
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