In the diagram, XY is a straight line.

Mathematics WAEC 2017

In the diagram, XY is a straight line. <POX = <POQ and <ROY = <QOR. Find the value of <POQ + <ROY.

  • 60\(^o\)
  • 90\(^o\) checkmark
  • 100\(^o\)
  • 120\(^o\)

The correct answer is: B

Explanation

<POX = <POQ; <ROY = QOR

2 <POQ + 2 <ROY = 180

2(<POQ = <ROY) = 180

<POQ + <ROY = 90

 

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