Elementary Geometry, Plane and Solid: For Use in High Schools and AcademiesMacmillan, 1901 - 440 σελίδες |
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Αποτελέσματα 1 - 5 από τα 38.
Σελίδα 5
... are thought of as the sides of the triangle . It should be remembered , however , that these sides may be extended as far as we wish at any time . The length of a side will always mean the length 5-10 ] 5 INTRODUCTION.
... are thought of as the sides of the triangle . It should be remembered , however , that these sides may be extended as far as we wish at any time . The length of a side will always mean the length 5-10 ] 5 INTRODUCTION.
Σελίδα 6
... mean the length of the line- segment between the vertices . A triangle may be designated by naming its vertices since no differ- ent triangle can have the same three vertices . Thus the triangle in the diagram is the triangle ABC , or ...
... mean the length of the line- segment between the vertices . A triangle may be designated by naming its vertices since no differ- ent triangle can have the same three vertices . Thus the triangle in the diagram is the triangle ABC , or ...
Σελίδα 7
... mean the angle at A , or B , or C , made by the two straight lines which meet at that point . The pupil should carefully observe that in reading an angle the letter at the vertex is always named between the other two letters . The angle ...
... mean the angle at A , or B , or C , made by the two straight lines which meet at that point . The pupil should carefully observe that in reading an angle the letter at the vertex is always named between the other two letters . The angle ...
Σελίδα 13
... mean one that can be followed with a pencil or a pen , starting from any point of it and returning to the same point , without remov- ing the pencil or pen from the paper , and with- out passing twice over the same portion of the line ...
... mean one that can be followed with a pencil or a pen , starting from any point of it and returning to the same point , without remov- ing the pencil or pen from the paper , and with- out passing twice over the same portion of the line ...
Σελίδα 23
... mean draw a straight line from the point A to the point C. The triangle ACB so constructed has the line - segment AB for one side ; but it remains to show that this triangle is equi- lateral . Proof . Because A is the centre of the ...
... mean draw a straight line from the point A to the point C. The triangle ACB so constructed has the line - segment AB for one side ; but it remains to show that this triangle is equi- lateral . Proof . Because A is the centre of the ...
Άλλες εκδόσεις - Προβολή όλων
Elementary Geometry, Plane and Solid; for Use in High Schools and Academies Thomas F 1859-1945 Holgate Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Elementary Geometry Plane and Solid: For Use in High Schools and Academies Thomas F. Holgate Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD AC² adjacent angles altitude angle formed angles are equal apothem base bisector bisects centre chord coincide convex convex polygon COROLLARY DEFINITION diagonals diameter dicular dihedral angle draw equal angles equal in area equiangular equidistant equilateral triangle EXERCISES face angles figure given circle given line-segment given plane given point given straight line greater Hence hypotenuse identically equal interior angles isosceles triangle length Let ABC line perpendicular magnitudes measure mid-point number of sides opposite sides pair parallel planes parallelepiped parallelogram perimeter perpen plane angles point of contact point of intersection polyhedral angle polyhedron prism Proof Prop Proposition VIII pyramid quadrilateral radii radius ratio rectangle regular polygon required to prove respectively right angles right triangle segments side BC similar sphere square subtended supplementary angle surface tangent tetrahedron theorem triangle ABC triangle is equal trihedral vertex volume
Δημοφιλή αποσπάσματα
Σελίδα 187 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 230 - The formula states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the base and altitude.
Σελίδα 55 - If two triangles have two sides of the one equal respectively to two sides of the other, but the included angle of the first greater than the included angle of the second, then the third side of the first is greater than the third side of the second. Given A ABC and A'B'C...
Σελίδα 76 - The line which joins the mid-points of two sides of a triangle is parallel to the third side and equal to one half of it.
Σελίδα 43 - Prove that, if two sides of a triangle are unequal, the angle opposite the greater side is greater than the angle opposite the less.
Σελίδα 231 - A polygon of three sides is called a triangle ; one of four sides, a quadrilateral; one of five sides, a, pentagon; one of six sides, a hexagon ; one of seven sides, a heptagon ; one of eight sides, an octagon ; one of ten sides, a decagon ; one of twelve sides, a dodecagon.
Σελίδα 27 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Σελίδα 200 - The area of a triangle is equal to half the product of its base by its altitude.
Σελίδα 161 - ... 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 229 - Two parallelograms are similar when they have an angle of the one equal to an angle of the other, and the including sides proportional.