Unit 8: transformations and constructions 0.0 / 5 ? MathematicsShape transformationsGCSEEdexcel Created by: Camille5000Created on: 01-03-20 10:38 Transformations Enlargement: -find the vector from the centre to vertex. -x by scale factor -draw new vertex from centre. 1) scale factor 2) centre of enlargement Rotations: 1)angle 2)direction 3)centre of rotation Translation: movement of a shape Left(-)= (X) sideways-+ Down(-)=. (Y). Up(+) + down(-) Reflection: X=a. Goes through x axis at a. Y=a. Goes through y axis at a. equidistant from mirror line. 1 of 5 3D shapes Elevations. =side + front Plan = top view Put all 2D elevations together to draw a 3D shape. Drawing 3D shapes. 1) draw front face 2) draw depth lines 3) join up depth lines 2 of 5 Bearings -Always measure from north. -Always go clockwise -Always write as 3 digits. https://mathsmadeeasy.co.uk/wp-content/uploads/2018/11/bearings-figure-2.png (Picture of a bearing) 3 of 5 Constructions. Perpendicular bisector: -Put a compass at 2/3 distance -Draw arcs above and below line. Angle bisector: -Draw an arc on each line -From these crosses, draw arcs in the middle. Side side side: -Draw 1st side -Use compass length so arcs cross. -Join up triangle Side angle side: Angle side angle Right angle hypotenuse side (RHS) Can all be drawn with a protractor and a ruler. 4 of 5 Loci Can be: -Between two lines -Between two points= perpendicular bisector. -From a line= rounded rectangle -From a point= circle https://www.onlinemathlearning.com/image-files/xlocus-of-points.png.pagespeed.ic.50OykDkMJZ.png (Examples) 5 of 5

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