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section 4 shape and area

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Mind Map on section 4 shape and area, created by scottb092 on 14/04/2014.
scottb092
Mind Map by scottb092, updated more than 1 year ago
scottb092
Created by scottb092 about 11 years ago
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Resource summary

section 4 shape and area
  1. symmetry
    1. see page 55
    2. properties of 2D shapes
      1. equilateral triangles
        1. 3 sides
          1. 3 equal angles of 60
            1. 3 lines of symetry
              1. rotational symetry order 3
              2. right angle triangle
                1. 1 right angle 90
                  1. no rotaton
                    1. no lines of symetry
                    2. isosceles triangle
                      1. 2 sides the same
                        1. 2 same angles
                          1. 1 line of symetry
                            1. no rotational symetry
                            2. scalene triangle
                              1. 3 diff sides
                                1. all diff angles
                                  1. no symetry
                                  2. square
                                    1. 4 angles 90
                                      1. 4 lines symetry
                                        1. rotational symetry order 4
                                        2. rombus
                                          1. 4 equal sides
                                            1. 2 pair of equal angles
                                              1. 2 lines of symetry
                                                1. rotational order 2
                                                2. trapezium
                                                  1. 1 pair of parellel sides
                                                    1. no symetry
                                                  2. congruent
                                                    1. congruent is 2 shapes that are the same
                                                    2. similar
                                                      1. the same shape but different size
                                                      2. perimeters
                                                        1. to find the perimeters you add the lengths of all the sides
                                                        2. perimeter algbra see page 36-37 and page 60
                                                          1. area formula
                                                            1. rectangle
                                                              1. length x width
                                                              2. triangle
                                                                1. half x base x height
                                                                2. paralleogram
                                                                  1. base x height
                                                                  2. trapezium
                                                                    1. half x bottom + top x height
                                                                  3. area of complicated shapes
                                                                    1. first split them in to rectangles and triangles
                                                                      1. work out there area seperate
                                                                        1. add them together
                                                                          1. example page 62
                                                                            1. harder example 63
                                                                            2. circles
                                                                              1. circle parts look at page 64 and use class book
                                                                                1. circle area and circuferance
                                                                                  1. page 64-65
                                                                                2. volume
                                                                                  1. cuboid
                                                                                    1. length x width x height
                                                                                    2. trianglular prism
                                                                                      1. area x length
                                                                                      2. cylinder
                                                                                        1. area of circle x height
                                                                                      3. nets surface area page 67-68
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