Plane and Solid GeometryAmerican Book Company, 1907 - 412 σελίδες |
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Σελίδα 12
... ANGLE ADJACENT ANGLES VERTICAL ANGLES RIGHT ANGLES PERPENDICULAR 13. A plane angle is the amount of divergence of two straight lines that meet . The lines are called the sides of the angle . The vertex of an angle is the point at which ...
... ANGLE ADJACENT ANGLES VERTICAL ANGLES RIGHT ANGLES PERPENDICULAR 13. A plane angle is the amount of divergence of two straight lines that meet . The lines are called the sides of the angle . The vertex of an angle is the point at which ...
Σελίδα 13
... angle is an angle whose sides lie in the same straight line , but extend in opposite directions from the vertex . OBTUSE ANGLE ACUTE ANGLE COMPLEMENTARY SUPPLEMENTARY ANGLES ANGLES 19. An obtuse angle is an angle that is greater than a ...
... angle is an angle whose sides lie in the same straight line , but extend in opposite directions from the vertex . OBTUSE ANGLE ACUTE ANGLE COMPLEMENTARY SUPPLEMENTARY ANGLES ANGLES 19. An obtuse angle is an angle that is greater than a ...
Σελίδα 14
... angle is at a vertex , the capital letter at the vertex is sufficient to designate the angle . Sometimes it is advantageous to name an angle by a small letter placed within the angle . The word " angle " is usually denoted by the symbol ...
... angle is at a vertex , the capital letter at the vertex is sufficient to designate the angle . Sometimes it is advantageous to name an angle by a small letter placed within the angle . The word " angle " is usually denoted by the symbol ...
Σελίδα 15
... angle of which is a right angle . An obtuse triangle is a triangle one angle of which is an obtuse angle . An acute triangle is a triangle all angles of which are acute angles . An equiangular triangle is a triangle all angles of which ...
... angle of which is a right angle . An obtuse triangle is a triangle one angle of which is an obtuse angle . An acute triangle is a triangle all angles of which are acute angles . An equiangular triangle is a triangle all angles of which ...
Σελίδα 18
Edward Rutledge Robbins. BOOK I ANGLES , LINES , RECTILINEAR FIGURES PRELIMINARY THEOREMS 36. A right angle is equal to half a straight angle . Because of the definition of a right angle . ( See 16. ) 37. A straight angle is equal to two ...
Edward Rutledge Robbins. BOOK I ANGLES , LINES , RECTILINEAR FIGURES PRELIMINARY THEOREMS 36. A right angle is equal to half a straight angle . Because of the definition of a right angle . ( See 16. ) 37. A straight angle is equal to two ...
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Plane and Solid Geometry (Classic Reprint) Edward Rutledge Robbins Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD acute angle altitude angle adjoining angles are equal apothem base bisector bisects chord circular cone circumference circumscribed circumscribed circle construct a square cylinder diagonals diameter dihedral angles equilateral triangle equivalent exterior angle face angles figure Find the area frustum given line given point given triangle Hence homologous homologous sides hypotenuse inscribed regular intersecting isosceles triangle lateral area lateral edges line joining mean proportional measured by arc median meet midpoint mutually equiangular number of sides opposite parallel parallelepiped parallelogram Pass plane perimeter perpendicular plane MN polyhedron prism Proof Prove quadrilateral ratio rectangle regular hexagon regular polygon regular pyramid rhombus right angles right circular right triangle secant segments similar slant height sphere spherical polygon spherical triangle straight line surface tangent tetrahedron THEOREM total area trapezoid trihedral vertex vertices
Δημοφιλή αποσπάσματα
Σελίδα 139 - If the product of two quantities is equal to the product of two others, one pair may be made the extremes, and the other pair the means, of a proportion.
Σελίδα 228 - An equiangular polygon inscribed in a circle is regular (if the number of its sides is odd) . 3.
Σελίδα 41 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Σελίδα 47 - The line joining the mid-points of two sides of a triangle is parallel to the third side, and equal to half the third side.
Σελίδα 241 - The area of a regular inscribed hexagon is a mean proportional between the areas of the inscribed and circumscribed equilateral triangles. Ex.
Σελίδα 146 - If a line divides two sides of a triangle proportionally, it is parallel to the third side.
Σελίδα 12 - The straight lines are called the sides of the triangle, and their points of intersection are the vertices of the triangle.
Σελίδα 143 - A line parallel to one side of a triangle divides the other two sides proportionally.
Σελίδα 268 - If from the foot of a perpendicular to a plane a line be drawn at right angles to any line of the plane, and...
Σελίδα 340 - The lateral area of a circular cylinder is equal to the product of the perimeter of a right section of the cylinder by an element. Let S denote the lateral area, P the perimeter of a right section, and E an element of the cylinder AC.