Elements of Geometry |
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Page iii
... divided into two parts , one treating of plane figures and the other of solids ; and the subdivisions of each part are denominated sections . As a knowledge of algebraical signs and the theory of propor- tions is necessary to the ...
... divided into two parts , one treating of plane figures and the other of solids ; and the subdivisions of each part are denominated sections . As a knowledge of algebraical signs and the theory of propor- tions is necessary to the ...
Page vi
... divided into eight sections , four of which treat of plane geometry , and four of solid geometry . The first section , entitled first principles , & c . contains the pro- perties of straight lines which meet those of perpendiculars ...
... divided into eight sections , four of which treat of plane geometry , and four of solid geometry . The first section , entitled first principles , & c . contains the pro- perties of straight lines which meet those of perpendiculars ...
Page ix
... divided by that represented by B , or A divided by B. A = B signifies that the magnitude represented by A is equal to that represented by B , or A equal to B. A B signifies that the magnitude represented by A exceeds that represented by ...
... divided by that represented by B , or A divided by B. A = B signifies that the magnitude represented by A is equal to that represented by B , or A equal to B. A B signifies that the magnitude represented by A exceeds that represented by ...
Page 19
... divided into five triangles , if it have seven sides , and into six , if it have eight , and in general into as many triangles wanting two , as the polygon has sides ; for these triangles may be considered as having for their com- mon ...
... divided into five triangles , if it have seven sides , and into six , if it have eight , and in general into as many triangles wanting two , as the polygon has sides ; for these triangles may be considered as having for their com- mon ...
Page 31
... divided into equal parts , of which each shall be less than DO , there will be at least one point of division between D and O ; let I be this point , and join CI ; the arcs AB , AI , will be to each other , as two entire num- bers , and ...
... divided into equal parts , of which each shall be less than DO , there will be at least one point of division between D and O ; let I be this point , and join CI ; the arcs AB , AI , will be to each other , as two entire num- bers , and ...
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Common terms and phrases
ABC fig adjacent angles altitude angle ACB angle BAD base ABCD bisect centre chord circ circular sector circumference circumscribed common cone consequently construction convex surface Corollary cube cylinder Demonstration diagonals diameter draw drawn equal and parallel equiangular equilateral equivalent faces figure four right angles frustum Geom gles greater hence homologous sides hypothenuse inclination inscribed circle isosceles join less let fall line AC manner mean proportional measure the half meet multiplied number of sides oblique lines opposite parallelogram parallelopiped perimeter perpendicular plane MN polyedron prism proposition pyramid S-ABC quadrilateral radii radius ratio rectangle regular polygon right angles right-angled triangle Scholium segment semicircumference side BC similar solid angle sphere spherical polygons spherical triangle square described straight line tangent THEOREM three plane angles triangle ABC triangular prism triangular pyramids vertex vertices whence