Plane and Solid Geometry: Suggestive MethodTracy, Gibbs, 1894 - 395 σελίδες |
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Αποτελέσματα 1 - 5 από τα 54.
Σελίδα vi
... pass- ing over nothing that is not clearly understood . Since each demonstration involves previous propositions and def- initions , facility in demonstration can be best secured by committing to memory each theorem and definition ; for ...
... pass- ing over nothing that is not clearly understood . Since each demonstration involves previous propositions and def- initions , facility in demonstration can be best secured by committing to memory each theorem and definition ; for ...
Σελίδα 28
... pass through all those points which are the same distance from A as from B , and through no other points . SUG . 1. What line has all its points equally distant from A and B ? Why ? SUG . 2. Are any points , without said line , equally ...
... pass through all those points which are the same distance from A as from B , and through no other points . SUG . 1. What line has all its points equally distant from A and B ? Why ? SUG . 2. Are any points , without said line , equally ...
Σελίδα 83
... passing through at least one of these points ; as CD E. A secant may be considered as a chord extended . B 136. A tangent to a circle is a straight line which has one and but one point in com- mon with the circle ; as MT N. The line is ...
... passing through at least one of these points ; as CD E. A secant may be considered as a chord extended . B 136. A tangent to a circle is a straight line which has one and but one point in com- mon with the circle ; as MT N. The line is ...
Σελίδα 93
... passes through the cenIST . Let A B represent a chord , and C D a perpendicular to △ B at its middle point C. To prove that CD passes through the center of the circle . SUG . 1. From O , the center of the circle , drop a 1 to the chord ...
... passes through the cenIST . Let A B represent a chord , and C D a perpendicular to △ B at its middle point C. To prove that CD passes through the center of the circle . SUG . 1. From O , the center of the circle , drop a 1 to the chord ...
Σελίδα 96
... passes through the center . Ex . 100 In the figure at the right , A E and BC are paral- lel , and MO is a transversal . BO bisects the angle A OM , and CObisects the angle EOM . e that B M equals M C. P. A B M E PROPOSITION XIV ...
... passes through the center . Ex . 100 In the figure at the right , A E and BC are paral- lel , and MO is a transversal . BO bisects the angle A OM , and CObisects the angle EOM . e that B M equals M C. P. A B M E PROPOSITION XIV ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
A B and C D A B C and D E F A B sustain A C equals adjacent angles altitude angles are equal apothem arc A B bisects chord circumference circumscribed Compare the ratios Compare Zs construct COROLLARY cylinder diagonal diameter dihedral angles distance draw drawn equal circles equal in area equally distant equals the ratio frustum Give auth given line given point Hence hypotenuse inscribed angle intersect isosceles triangle lateral area lateral edges Let A B C represent line A B locus middle point number of sides parallel lines parallelogram parallelopiped perimeter perpendicular plane M N polyhedron prism Prop PROPOSITION XVIII pyramid radii radius rectangle regular polygon respectively right angles right triangle SCHOLIUM segment slant height sphere spherical polygon spherical triangle subtended tangent THEOREM triangles A B C trihedral unit of measure vertex vertices volume
Δημοφιλή αποσπάσματα
Σελίδα 137 - The square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.
Σελίδα 48 - If two triangles have two sides of one respectively equal to two sides of the other, and the included angles unequal, the triangle which has the greater included angle has the greater third side.
Σελίδα 138 - ... they have an angle of one equal to an angle of the other and the including sides are proportional; (c) their sides are respectively proportional.
Σελίδα 59 - If two triangles have two sides of one equal to two sides of the other but the third side of the first greater than the thin!
Σελίδα 292 - ADC ; the last two are therefore right angles ; hence the arc drawn from the vertex of an isosceles spherical triangle to the middle of the base, is perpendicular to the base, and bisects the vertical angle.
Σελίδα 211 - The projection of a point on a plane is the foot of the perpendicular from the point to the plane. The projection of a figure upon a plane is the locus of the projections of all the points of the figure upon the plane. Thus, A'B' represents the projection of AB upon plane MN.
Σελίδα 119 - If two polygons are composed of the same number of triangles, similar each to each and similarly placed, the polygons are similar.
Σελίδα 96 - It is read the ratio of a to b equals the ratio of c to d, or briefly, a is to b as c is to d.
Σελίδα 254 - A truncated triangular prism is equivalent to the sum of three pyramids whose common base is the base of the prism and whose vertices are the three...
Σελίδα 263 - That is, the lateral areas, or the total areas, of similar cylinders of revolution are to each other as the squares of their altitudes, or as the squares of the radii of their bases.