Mathematics 0580 · IGCSE · Angles

Angles — practice question

The diagram depicts a parallelogram. One interior angle is marked $(132 - 2x)^\circ$ and the neighbouring interior angle is marked $(15 + 5x)^\circ$. The parallel sides are indicated. NOT TO SCALE.
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Work out the size of the smallest interior angle of the parallelogram.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A correct equation is set up, such as $132-2x+15+5x=180$” …

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