Elements of Geometry and Trigonometry |
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Page 11
... square , which has its sides equal , and its an- gles right - angles . The rectangle , which has its angles right an- gles , without having its sides equal . The parallelogram , or rhomboid , which has its opposite sides parallel . The ...
... square , which has its sides equal , and its an- gles right - angles . The rectangle , which has its angles right an- gles , without having its sides equal . The parallelogram , or rhomboid , which has its opposite sides parallel . The ...
Page 13
... square of the line AB is designated by AB ' ; its cube by AB3 . What is meant by the square and cube of a line , will be explained in its proper place . The sign indicates a root to be extracted ; thus √2 means the square - root of 2 ...
... square of the line AB is designated by AB ' ; its cube by AB3 . What is meant by the square and cube of a line , will be explained in its proper place . The sign indicates a root to be extracted ; thus √2 means the square - root of 2 ...
Page 31
... square . Cor . 2. The sum of the angles of a pentagon is equal to two right angles multiplied by 5-2 , which amounts to six right angles : hence , when a pentagon is equiangular , each angle is equal to the fifth part of six right ...
... square . Cor . 2. The sum of the angles of a pentagon is equal to two right angles multiplied by 5-2 , which amounts to six right angles : hence , when a pentagon is equiangular , each angle is equal to the fifth part of six right ...
Page 36
... square of the mean . PROPOSITION II . THEOREM . If the product of two quantities be equal to the product of two other quantities , two of them will be the extremes and the other two the means of a proportion . Let MxQ = Nx P ; then will ...
... square of the mean . PROPOSITION II . THEOREM . If the product of two quantities be equal to the product of two other quantities , two of them will be the extremes and the other two the means of a proportion . Let MxQ = Nx P ; then will ...
Page 63
... square . PROBLEM XIII . To find the centre of a given circle or arc . Take three points , A , B , C , any where in the circumference , or the arc ; draw AB , BC , or suppose them to be drawn ; bisect those two lines by the ...
... square . PROBLEM XIII . To find the centre of a given circle or arc . Take three points , A , B , C , any where in the circumference , or the arc ; draw AB , BC , or suppose them to be drawn ; bisect those two lines by the ...
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Common terms and phrases
adjacent adjacent angles altitude angle ACB angle BAC ar.-comp base multiplied bisect Book centre chord circ circumference circumscribed common cone convex surface Cosine Cotang cylinder diagonal diameter dicular distance draw drawn equal angles equally distant equiangular equivalent figure formed four right angles frustum given angle given line gles greater homologous sides hypothenuse inscribed polygon intersection less Let ABC let fall logarithm measured by half number of sides oblique lines opposite parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN polyedron polygon ABCDE prism proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABC Scholium secant secant line segment side BC similar sine solid angle solid described sphere spherical polygon spherical triangle square described straight line tang tangent THEOREM triangle ABC triangular prism vertex