Mathematics 0580 · IGCSE · Angles

Angles — practice question

The figure is an isosceles triangle. The base angle on the right is $43^\circ$. The two congruent sides are indicated. The angle at the apex is marked $x^\circ$. NOT TO SCALE.
(main)[2]

Determine the value of $x$.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: An equation equal to $x+2\times43=180$ is formed, or an equivalent one

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