Inventional Geometry: A Series of Problems : Intended to Familiarize the Pupil with Geometrical Conceptions, and to Exercise His Inventive FacultyAmerican Book Company, 1876 - 97 páginas |
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Página 25
... angles . 36. Make two unequal adjacent angles with two lines . When one line stands upon another line , in such a direction as to make the adjacent angles equal to one another , then each of these angles is called a right angle . 37 ...
... angles . 36. Make two unequal adjacent angles with two lines . When one line stands upon another line , in such a direction as to make the adjacent angles equal to one another , then each of these angles is called a right angle . 37 ...
Página 28
... angle how many degrees it contains . All angles greater or less than the angle of a quadrant are called oblique angles . When an oblique angle is less than a quad- rantal angle , that is less than a right angle , that is less than an angle ...
... angle how many degrees it contains . All angles greater or less than the angle of a quadrant are called oblique angles . When an oblique angle is less than a quad- rantal angle , that is less than a right angle , that is less than an angle ...
Página 30
... triangle has one of its angles a right angle , it is called a right - angled triangle . 66. Make a right - angled triangle . When a triangle has each of its angles less than a right angle , and all different in size , it is called a common ...
... triangle has one of its angles a right angle , it is called a right - angled triangle . 66. Make a right - angled triangle . When a triangle has each of its angles less than a right angle , and all different in size , it is called a common ...
Página 39
... angle of one hexagon may touch vertically one angle of the other ? 113. Can ... right - angled triangles that shall be exactly alike , and whose ... right INVENTIONAL GEOMETRY . 39.
... angle of one hexagon may touch vertically one angle of the other ? 113. Can ... right - angled triangles that shall be exactly alike , and whose ... right INVENTIONAL GEOMETRY . 39.
Página 44
... right - angled triangle , the side which faces the right angle is called the hypothen use . 145. Can you make a right - angled triangle , whose base shall be 4 and hypothenuse 6 ? 146. Can you make a rectangle , whose length shall be 5 ...
... right - angled triangle , the side which faces the right angle is called the hypothen use . 145. Can you make a right - angled triangle , whose base shall be 4 and hypothenuse 6 ? 146. Can you make a rectangle , whose length shall be 5 ...
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Términos y frases comunes
adjacent angles AMERICAN BOOK COMPANY angular points arc is called arithmetic arithmetic mean arrange the surfaces BALFOUR STEWART Barnes's Brief History base boundaries breadth card a hollow cents circumference Cloth construct cube curve diameter dimensions divide a circle divide a line divide an equilateral dodecagon duodecimals EDWARD EGGLESTON ellipse equal and similar equal sectors equilateral triangle find the area four equal geometry Give a plan give a sketch gles HERBERT SPENCER hexagon hexahedron icosahedron illustrated Inventional Geometry isosceles triangle length line drawn line of chords line of sines line of tangents nonagon number of degrees octagon octahedron pentagon perpendicular piece of card place a circle place a hexagon place a square polygon protractor pupil pyramid quadrant quadrilaterals radii radius ratio rectangle reëntrant angle rhomboid rhombus right angle right-angled triangle secant sides is called solid square inches takes the name tetrahedron Thalheimer's touch trapezium versed sine write its name zoid
Pasajes populares
Página 41 - TRIANGLES upon the same base, and between the same parallels, are equal to one another.
Página 21 - All arcs of circles that are not so great as a semi-circumference are called less arcs. A line that joins the extremities of an arc is called the chord of that arc. When two radii connect together any two points in the circumference of a circle which are on exactly the opposite sides of the centre, they make a chord, which is called the diameter of the circle, and such diameter divides the circle into two equal segments, 1 which take the name of semicircles.