Author's Diagrams base called CHAPTER circular curves collective teaching cone be cut cylinder DEFINITION DEFINITION.-1 delineation of form desk diagonal diameter dicular downstroke draw a circle Draw a horizontal draw a line Draw a perpendicular Draw a straight draw STRAIGHT LINES draw the lines drawing the curves elementary writing ellipse EXAMPLE V.-To draw EXERCISE.-Repetition at discretion EXERCISES.-1 EXPLANATION.-1 figure contained figure in various horizontal line hyperbola II.-To draw illustrated Infant Schools instruction INSTRUCTION.-1 introduced isoceles triangle join the dots Join the extremities learning to write left side length Lessons for Infant line drawn line of beauty lines slant lower mark the dots Model Lessons oblong opposite sides outline drawing OUTLINE WRITING BOOKS parabola parallel lines parallelogram parallelopiped pencil perpen plane PLATE preceding Exercises prism pyramid QUESTIONS right angled triangle right line sides equal slanting line slate or paper solid figure teacher tion trapeziums Triangular prisms upstroke various sizes
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 47 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 33 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Σελίδα 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.
Σελίδα 68 - A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved.
Σελίδα 67 - The axis of a cone is the fixed straight line about which the triangle revolves.