(a)[1]
Show that the interior angles of a pentagon add up to $540^\circ$.
(b(i))[2]
Write down an expression, in terms of $x$, for the total of the pentagon's interior angles. Give your answer in its simplest form.
(b(ii))[2]
Work out $x$.
Mathematics 0580 · IGCSE · Angles
Angles — practice question
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Either $(5-2)\times180$ or $\left(180-\dfrac{360}{5}\right)\times5$” …
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