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allowed assistance Author's base Books bottom called centre CHAPTER circle circular curves collective commencing complete cone construction contained corresponding cross curves DEFINITION delineation described desk diagonal DIAGRAM diameter dicular direction discretion distances divided dots downstroke Draw a horizontal Draw a perpendicular Draw a straight drawn effort elementary equal EXAMPLE exercise EXERCISE.-1 figure fixed formed four greater half hand horizontal line illustrated Infant Schools instruction INSTRUCTION.-1 intended introduced Join the extremities kind learning left side length letters loop lower mark means meet middle nearly objects oblong opposite sides outline oval parallel parallel lines pencil perpen perpendicular plane PLATE portion preceding Published pupils pyramid QUESTIONS remaining right angles right line segment similar simple slanting line solid sphere square stand straight line subjects successive taking teacher teaching tion touch triangle turning upper upstroke various sizes vertical writing
Page 47 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Page 27 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Page 27 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Page 47 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Page 33 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Page 39 - A parallelogram is a four.sided figure, of which the opposite sides are parallel; and the diameter is the straight line joining two of its opposite angles.
Page 68 - A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved.
Page 67 - The axis of a cone is the fixed straight line about which the triangle revolves.