The arcs showing the size of the angles are coloured orange., To draw a reflex angle such as PQR = 300°, it is easier to draw the ‘other’ angle, then show the reflex angle as the angle required.

GCSE Maths Geometry and measure learning resources for adults, ... Angles, lines and polygons - AQA. ... sectors and arcs - AQA.

Foreseen applications include measurement of: valve angle, antenna elevation, surveillance camera tilt, suspension level, exercise equipment and heliostat angle for solar energy collection. Samples of ...