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Calculate the value of $PQ$.
Mathematics 0580 · IGCSE · Pythagoras' theorem
Pythagoras' theorem — practice question
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Hence, $\sqrt{11.5^{2} - 7.2^{2}} = 8.97$ (or $8.967\ldots$)” …
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