Major arc

Definition

The longer of the two arcs joining two points on a circle; its central angle is greater than $180^\circ$ .

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Specification G18 · Paper 1, Paper 2, Paper 3

A diagram often labels the smaller angle even when the question asks about the major arc or sector.
Revise: Sectors and Arcs

Specification G18 · Paper 1, Paper 2, Paper 3

The longer arc between two points on a circle, associated with a central angle greater than $180^\circ$ .

1
Check whether the labelled angle belongs to the required minor or major arc; if not, use $360^\circ-\theta$ .

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18 0^{\circ}

Specification 10.02b · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)

The longer arc joining two points on a circle.
The major arc is the longer route and corresponds to the reflex angle at the centre.
Revise: Circular Circumference