Elements of Geometry: With Practical Applications ...H.H. Howley and Company, 1847 - 308 σελίδες |
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Αποτελέσματα 1 - 5 από τα 100.
Σελίδα 12
... draw a straight line from any one point to any other point . II . To produce a terminated straight line to any length . III . To describe the circumference of a circle , from any centre , with any radius , or , in other words , at any ...
... draw a straight line from any one point to any other point . II . To produce a terminated straight line to any length . III . To describe the circumference of a circle , from any centre , with any radius , or , in other words , at any ...
Σελίδα 14
... draw the line CD . F D Now , reversing the square , apply the first A side so as to coincide with BC ; and then , B C along the second side , trace upon the sur- face the line CF. If the square is perfectly accurate , it is obvious that ...
... draw the line CD . F D Now , reversing the square , apply the first A side so as to coincide with BC ; and then , B C along the second side , trace upon the sur- face the line CF. If the square is perfectly accurate , it is obvious that ...
Σελίδα 16
... angle BGD . B Solution . Produce BD until DF is equal to BD : draw AF , cutting the mirror at G , and G will be the point required . For , comparing the triangle GFD with GBD , we have DF equal to 16 ELEMENTS OF GEOMETRY .
... angle BGD . B Solution . Produce BD until DF is equal to BD : draw AF , cutting the mirror at G , and G will be the point required . For , comparing the triangle GFD with GBD , we have DF equal to 16 ELEMENTS OF GEOMETRY .
Σελίδα 18
... draw AC , making the angle BAC equal to the given angle , and AC equal to the sum of the other two sides ; join BC , and bisect it by the perpendicu- lar DF ; finally join BF , and ABF will be the triangle required . This is obvious ...
... draw AC , making the angle BAC equal to the given angle , and AC equal to the sum of the other two sides ; join BC , and bisect it by the perpendicu- lar DF ; finally join BF , and ABF will be the triangle required . This is obvious ...
Σελίδα 21
... draw the line AF and produce it until FG is equal to AF ; and join BG . Now , in the two triangles AFC and GFB , the sides FA and FC are respectively equal to the sides FG and FB , and the opposite angles AFC and GFB are equal ( Prop ...
... draw the line AF and produce it until FG is equal to AF ; and join BG . Now , in the two triangles AFC and GFB , the sides FA and FC are respectively equal to the sides FG and FB , and the opposite angles AFC and GFB are equal ( Prop ...
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Elements of Geometry With Practical Applications George R Perkins Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2023 |
Συχνά εμφανιζόμενοι όροι και φράσεις
a+b+c AC² altitude angle ACD angle BAC bisect centre chord circ circular sector circumference cone consequently convex surface cylinder diagonal diameter distance draw equal and parallel equiangular equilateral triangle equivalent exterior angle figure formed four right angles given line greater half the arc hypothenuse inscribed circle intersection isosceles join less Let ABC lines drawn magnitude measured by half meet multiplied number of sides opposite angles parallel planes parallelogram parallelopipedon pendicular perimeter perpendicular plane MN point G prism PROBLEM produced Prop PROPOSITION pyramid radii radius rectangle regular polygon respectively equal right angles right-angled triangle Sabc Schol Scholium semicircle semicircumference side AC similar similar triangles solid angle solid described sphere spherical triangle square straight line suppose tangent THEOREM three sides triangle ABC triangular prism vertex VIII
Δημοφιλή αποσπάσματα
Σελίδα 37 - The sum of all the angles of a polygon is equal to twice as many right angles as the polygon has sides, less two.
Σελίδα 180 - THEOREM. If one of two parallel lines is perpendicular to a plane, the other will also be perpendicular to this plane. Let AP & ED be parallel lines, of which AP is perpendicular to the plane MN ; then will ED be also perpendicular to this plane.
Σελίδα 139 - PROBLEM. To inscribe a circle in a given triangle. Let ABC be the given triangle : it is required to inscribe a circle in the triangle ABC.
Σελίδα 224 - The radius of a sphere is a straight line, drawn from the centre to any point of the...
Σελίδα 43 - In a right-angled triangle, the side opposite the right angle is" called the Hypothenuse ; and the other two sides are cal4ed the Legs, and sometimes the Base and Perpendicular.
Σελίδα 184 - THEOREM. If two angles, not situated in the same plane, have their sides parallel and lying in the same direction, they will be equal, and the planes in which they are situated will be parallel.
Σελίδα 10 - 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.
Σελίδα 226 - We conclude then, that the solidity of a cylinder is equal to the product of its base by its altitude.
Σελίδα 22 - If two sides and the included angle of the one are respectively equal to two sides and the included angle of the other...
Σελίδα 12 - If equals be added to unequals, the wholes are unequal. V. If equals be taken from unequals, the remainders are unequal. VI. Things which are double of the same, are equal to one another.