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Shape Names

Shape Names. Radius. Diameter. Tangent. Chord. Line Names. Perpendicular means 90 0. Parallel means never touches. 2d and 3d Shape Names. (Triangular) Prism. Cone. Pyramid. 5 sides = pentagon. Cylinder. Cuboid. Number Names. 20. Multiples Larger numbers 20,40,60,80 etc.

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Shape Names

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  1. Shape Names Radius Diameter Tangent Chord

  2. Line Names Perpendicular means 900 Parallel means never touches

  3. 2d and 3d Shape Names (Triangular) Prism Cone Pyramid 5 sides = pentagon Cylinder Cuboid

  4. Number Names 20 Multiples Larger numbers 20,40,60,80 etc Factors Smaller Numbers 1,2,4,5,10,20 Square Numbers Number x itself = square number Prime Numbers Only 2 numbers go into it 1 and the number itself Eg 2,3,5,7,11

  5. Number Words ˖ x Add Find the sum of Total ˗ Times Multiply Find the product Subtract Take away Differ Find the difference

  6. Averages – the Median A Put in order, pick out the middle one D N E I M

  7. Averages – the Mean MEAN MEAN Add the numbers, then divide by how many there are

  8. Perimeter

  9. AREA Split into rectangles Area of rectangle = length x width Add areas together

  10. ESTIMATE OF THE MEAN • 2 extra columns • Use mid point of groups • Mid point x frequency • Big total divided by little total

  11. SCATTER DIAGRAMS • Plot the points • Line of best fit • Positive and negative correlation

  12. CIRCLES Area = pi x rad2 Circumference = pi x diameter Leave in terms of pi means treat pi as a letter

  13. PYTHAGORAS • TAKE THE 2 NUMBERS • SQUARE • SQUARE • ADD OR SUBTRACT • SQUARE ROOT

  14. FREQUENCY DIAGRAMS Frequency polygon = join midpoints of bar chart Frequency diagram = bar chart

  15. CURVED AREAS Count all the squares inside the shape. Include the ones on the edge that are half or more inside

  16. BEARINGS ANGLE MEASURED FROM THE NORTH LINE (North line must be on zero degrees on a protractor) MEASURED IN A CLOCKWISE DIRECTION MUST BE WRITTEN AS THREE FIGURES Find the bearing of B from A 054° N B A

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