4MA0 Foundation January 2012 Paper 1 Q3

EdexcelFoundationOld spec4 marksAngles (Including Parallel Lines)

3

Three lines meeting at a point, with angles x and y marked

Diagram NOT accurately drawn

(a) Explain why the diagram is wrong for \(x = 135^\circ\) and \(y = 245^\circ\) (2)
(b) Write down the mathematical name for
(i) an angle of 135°
(ii) an angle of 245°
(2)
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