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(a) CE = 5 - 3 = 2 units      EG = 7 - 5 = 2 units          Therefore CE = EG. (b) CE = EG therefore PE bisects CG. (c) PE is the perpendicular bisector for line segments DF and BH (d) (i) AC = 3 - 1 = 2 units          FG = 7 - 6 = 1 unit            Therefore AC > FG             True     (ii) CD = 4 - 3 = 1 unit          GH = 8 - 7 = 1 unit           Therefore CD = GH           True        ...
The angles of the two set quares are (i) 90o, 60o and 30o (ii) 90o, 45o and 45o Yes they have the common angle measure 90o
 (a) The adjacent edges of a table top are models for perpendicular lines. (b) The lines of a railway track are not models for perpendicular lines as they are parallel to each other. (c) The line segments forming the letter ‘L’ are models for perpendicular lines. (d) The line segments forming the letter ‘V’ are models for perpendicular lines.
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