Created by Dexter Duncan
about 4 years ago


The Tranfiguration Transformation
side OA times 3 gives 9 spaces, corresponding ray gives enlarged shape c) * points are between PR are seen passing through ii) PS PS', PR PR', PQ PQ'
2 figures are similar if one is an enlargement (or reduction)example explain:PQR and ABC ar similar figures, triangle PQR has been enlarged from PQR ,a) find the centre of enlargement factor of enlargement = new shape _____________ old shape
draw a concluding line towards one meeting point
a) rays from points (AP, CR, BQ) , point of intersection is the centre of enlargement (W)b) k = 7.5 distance of WR /5 units of WC
Investigation 2 *1 the matching angles are equal and 2 ) the matching sides are in the same ratio. ( sides are therefore in proportion)*the ratio of the lengths of the sides shows the enlargement factor. figures are similar due to their properties ,angles ae equal and corresponding sides are in the same ratio
enlargement factor is found by drawing 9/6 , so hence to find x , 9/6 times 7 ..enlargement factor to enlarge or reduct one side..
in triangle ABC and CDE : /BAC = /CDE ( alternating angles on // lines) /ABC =/CDE (alt,angles ) /ACB = /DCE (VERT. OPP)
THEREFORE, ABC & CDE (AAA)
Find the real lengths involved decide how large the drawing will be choose a appropriate scale transfer te real lengths into scale lengths using the scale
*to decide on a scale, find the ratio of thelength available for the drawing to the length of the real object.scale = length of drawing:length of objectExample 1 a scale drawing 7.5*5.5