Angles

Description

(Shape and space) Mind Map on Angles, created by Lou Collins on 30/04/2013.
Lou Collins
Mind Map by Lou Collins, updated more than 1 year ago
Lou Collins
Created by Lou Collins over 11 years ago
63
1

Resource summary

Angles
  1. Parallel lines
    1. Corresponding angles - are equal
      1. Alternate angles - are equal
        1. Allied angles - add up to 180 degrees
          1. Transversal
            1. Two lines that never meet
            2. Polygons
              1. Triangles - add up to 180 degrees
                1. Quadrilaterals - add up to 360 derees
                  1. Interior angles
                    1. Sum of interior angles - 180(n-2)
                      1. 180 - exterior angle
                      2. Exterior angles
                        1. 180 - interior angle
                          1. always sum to 360 degrees
                            1. Regular polygon - 360/n
                        2. Straight lines
                          1. Angles on a straight line add up to 180 degress
                            1. Angles at a point add up to 360 degrees
                              1. Vertically opposite angles are equal
                              2. Basic types of angles
                                1. Acute angle - less than 90 degrees
                                  1. Obtuse angle - between 90 and 180 degrees
                                    1. Right angle - 90 degrees
                                      1. Perpendicular
                                      2. Straight line - 180 degrees
                                        1. Reflex angle - over 180 degrees
                                          1. Full turn - 360 degrees
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