Angles in a Figure with Parallel Lines and an Isosceles Triangle

Angles in a Figure with Parallel Lines and an Isosceles Triangle

Secondary 1

In the diagram above, \(AB\) is parallel to \(CD\) and \(PQ\) is parallel to \(BR\) and \(\Delta PQR\) is an isosceles triangle. It is given that \(\angle QPB=113{}^\circ \), \(\angle CRQ=51{}^\circ \) and \(\angle BDR=59{}^\circ \).

Giving your reasons, find

  1. \(\angle RBD\),
  2. \(\angle BRQ\),
  3. \(\angle QRP\).

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Answer:(a) \(\angle RBD=54^\circ\) (b) \(\angle BRQ=62^\circ\) (c) \(\angle QRP=31^\circ\)

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