Use set notation to describe the shaded regions in each Venn diagram. (C) UCLES 2017 $$\(0580 / 01 / \mathrm{SP} / 20\)$$ [Turn over

C4.1.1 Use and interpret the geometrical terms: point, line, parallel, bearing, right angle, acute, obtuse and reflex angles, perpendicular, similarity and congruence.

C4.1.2 Use and interpret vocabulary of triangles, quadrilaterals, circles, polygons and simple solid figures including nets.

C4.2.1 Measure and draw lines and angles.

C4.2.2 Construct a triangle given the three sides using a ruler and a pair of compasses only.

C4.3 Read and make scale drawings.

C4.4 Calculate lengths of similar figures.

C4.5 Recognise congruent shapes.

C4.6 Recognise rotational and line symmetry (including order of rotational symmetry) in two dimensions. (Includes properties of triangles, quadrilaterals and circles directly related to their symmetries.)

C4.7.1 angles at a point

C4.7.2 angles at a point on a straight line and intersecting straight lines

C4.7.3 angles formed within parallel lines

C4.7.4 angle properties of triangles and quadrilaterals

C4.7.5 angle properties of regular polygons

C4.7.6 angle in a semicircle

C4.7.7 angle between tangent and radius of a circle.