This chapter deals with methods of drawing geometrical shapes.
1. We use the followng geometrical instruments to construct shapes:
(1) A graduated ruler
The compasses
The divider (iv) Set-squares (V)
The protractor
2. Using the ruler and compasses, the following constructions can be made:
(1) A circle, when the length of its radius is known.
A line segment, if its length is given.
A copy of a lines segment.
(iv) A perpendicular to a line through a point
(a) on the lines
(b) not on the line
The perpendicular bisector of a line segment of given length.
(vi) An angle of a given measure.
(vii) A copy of an angle.
(viii) The bisector of a given angle.
(ix) Some angles of special measures such as:
(a) 90° (b)
45° (c) 60° (do 30° (e)
30° (e) 120° (1)
120° (1) 135
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