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In the diagram, O is the centre of the circle, < QPS = 100o, < PSQ = 60o a...



Dicussion (1)

  • In the diagram, < RPQ = 80\(^{\circ}\)(angles in same segment)
    < SPR = 100\(^{\circ}\) - < RPQ
    = 100 - 80
    = 20\(^{\circ}\)
    < SQR = < SPR = 20\(^{\circ}\) (same reason as above)
    < SQR = 20\(^{\circ}\)

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