Year 11 (2025) Maths Advanced
Trigonometry
Right Angled Triangles
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Questions
Question 1
18031
In \(\triangle ABC\), \(AB=x\text{ cm},\) \(AC=y\text{ cm},\) \(DC=15\text{ cm},\) \(\angle ABC=60^\circ\) and \(\angle ACB=30^\circ\). Find the exact values of \(x\) and \(y\).
Part a:
\(x=\)
10
\(~\text{cm}\)
1 mark
Part b:
\(10\sqrt 2~\text{cm}\)
\(5\sqrt 3~\text{cm}\)
\(10\sqrt 3~\text{cm}\)
Correct
\(20\sqrt 3~\text{cm}\)
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