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Unformatted text preview: 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. Enlarge & Reduce Shapes Revise Drawing Triangles Scales & Drawing Scales & Drawing www.mathsrevision.com Scales and Map Reading Bearings 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com 2 . C a lc u la t e 3 0 % o f 8 0 (a) 9 . 2 2 7 (b) 1 9 . 4 5 4 (c) 1 1 7 . 0 9 1 . 2 5 % of 2 5 . 2 3 . Round t o 1 decimal place 4 . Find t he value of x 4 x + 2 = 1 2 2 13 Feb 2012 13 Feb 2012 Created by Mr. Lafferty Maths Dept. Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Learning Intention Success Criteria Success Criteria 1. 1. To be able to draw scaled drawing To be able to draw scaled drawing of a shape either an enlargement or of a shape either an enlargement or reduction. reduction. 1. To draw an enlarged or reduced drawing for various shapes. Scales & Drawing Scales & Drawing Enlargement & Reduction 13 Feb 2012 Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Scales & Drawing Scales & Drawing Enlargement & Reduction Example : Enlarge the shape by a factor of 2. Simply double what you have in both directions 2 boxes wide 1 box down 4 boxes wide 2 b o x e s w i d e Factor of 2 13 Feb 2012 Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Scales & Drawing Scales & Drawing Enlargement & Reduction Example : Reduce the triangle by a factor of 4. Simply quarter what you have in both directions 12 4 3 1 Factor of 1/4 13 Feb 2012 Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Scales & Drawing Scales & Drawing Enlargement & Reduction Example : Say whether the following is a enlargement or reduction. Find the missing by first working out scale factor value....
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This note was uploaded on 02/13/2012 for the course MAT 116 A 211 taught by Professor Skinner during the Spring '11 term at University of Phoenix.
 Spring '11
 skinner

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