Mathematics
State whether the following statements are true (T) or false (F):
(i) There is only one set square in a geometry box.
(ii) An angle can be copied with the help of a ruler and compass.
(iii) The perpendicular bisector of a line segment can be drawn by paper folding.
(iv) A perpendicular to a line from a given point not on it can be drawn by paper folding.
(v) A 45° - 45° - 90° set square and a protractor have the same number of line(s) of symmetry.
Constructions
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Answer
(i) False. There are two set squares in a geometry box, one with angles 30°, 60°, 90° and the other with angles 45°, 45°, 90°.
(ii) True. An angle can be copied with the help of a ruler and compass.
(iii) True. The perpendicular bisector of a line segment can be drawn by paper folding.
(iv) True. A perpendicular to a line from a given point not on it can be drawn by paper folding.
(v) True. Both a 45° - 45° - 90° set square and a protractor have 1 line of symmetry each.
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