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in the figure |
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Answer» Step-by-step explanation: (a) Angle A + Angle B = 180-60=120 AO=BO. ( Radii) therefore angle A= angle B A+B=120 A+A=120 2A = 120 A= 120/2 =60° (b) all angle are 60° therefore ∆AOB is a EQUILATERAL triangle AB=AO=BO given that AB = 6cm Radius AO= 6cm |
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