4400 Higher November 2007 Paper 3 Q1

EdexcelHigherOld spec5 marksAngles in Polygons

1 The diagram shows a regular 5-sided polygon, with centre \(O\).

Regular pentagon with centre O joined to the vertices; angle x at the centre-side of a bottom vertex inside a triangle, exterior angle y between the extended base and a side

Diagram NOT accurately drawn

Work out the value of

(a) \(x\), (3)
(b) \(y\). (2)
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