4MA0 Foundation June 2014 Paper 1R Q10

EdexcelFoundationOld spec5 marksAngles (Including Parallel Lines)

10

Triangle ABC with equal sides marked, ABD a straight line, angle BDC 25 degrees, angles w, x, y, z marked

Diagram NOT accurately drawn

In the diagram, \(ABD\) is a straight line.
\(AB = BC = CA\) and angle \(BDC = 25^\circ\)

(a) Work out the size of angle \(w\). (1)
(b) Write down the size of angle \(x\). (1)
(c) Work out the size of angle \(y\). (1)
(d) Work out the size of angle \(z\). (2)
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