Lessons on the delineation of form1848 |
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Página 33
... lower horizontal - begin- ning on the left side . 5. From the point , where the perpendicular falls from the upper horizontal line , draw two lines slant- ing in opposite directions to touch the extremities of the lower horizontal ...
... lower horizontal - begin- ning on the left side . 5. From the point , where the perpendicular falls from the upper horizontal line , draw two lines slant- ing in opposite directions to touch the extremities of the lower horizontal ...
Página 35
... lower part of the perpendicular . 3. Join the extremity of the remaining perpendic- ular , to the opposite extremities of the horizontal line . Three internal triangles will then be formed , and their character may be determined either ...
... lower part of the perpendicular . 3. Join the extremity of the remaining perpendic- ular , to the opposite extremities of the horizontal line . Three internal triangles will then be formed , and their character may be determined either ...
Página 39
... Draw a diagonal from the upper angle on the left of the figure to the lower angle on the right . DEFINITION.- " A rhombus has all its sides equal , but its angles are not right - angles . EXAMPLE V. - To draw a rhombus . Fig . 39.
... Draw a diagonal from the upper angle on the left of the figure to the lower angle on the right . DEFINITION.- " A rhombus has all its sides equal , but its angles are not right - angles . EXAMPLE V. - To draw a rhombus . Fig . 39.
Página 44
... lower segments of circles . DIAGRAM , No. XXII . INSTRUCTION . - 1 . Draw a horizontal line . 2. Divide this line into three equal parts . To describe the upper Segment . 3. Upon the middle point of the first division , erect a ...
... lower segments of circles . DIAGRAM , No. XXII . INSTRUCTION . - 1 . Draw a horizontal line . 2. Divide this line into three equal parts . To describe the upper Segment . 3. Upon the middle point of the first division , erect a ...
Página 45
... lower segment of a large circle will thus be formed . EXPLANATION . - The line which describes a circle is called its circumference . - This may be illustrated by showing or drawing a ring . DEFINITION.- - “ A segment of a circle is the ...
... lower segment of a large circle will thus be formed . EXPLANATION . - The line which describes a circle is called its circumference . - This may be illustrated by showing or drawing a ring . DEFINITION.- - “ A segment of a circle is the ...
Términos y frases comunes
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
Pasajes populares
Página 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.
Página 65 - A cone is a solid figure described by the revolution of a right angled triangle about one of the sides containing the right angle, which side remains fixed.
Página 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.
Página 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.
Página 47 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 33 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Página 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.
Página 68 - A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved.
Página 67 - The axis of a cone is the fixed straight line about which the triangle revolves.
Página 45 - A segment of a circle is the figure contained by a straight line and the circumference which it cuts off.