British Encyclopedia: Or, Dictionary of Arts and Sciences, Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volume 12Mitchell, Ames, and White, 1821 - Natural history |
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... conic section , v . gr . in order to describe a re- gular endecagon , or figure of eleven sides in a circle , it is required to de- scribe an isosceles triangle on a right line given , whose angles , at the base , SUR SUR.
... conic section , v . gr . in order to describe a re- gular endecagon , or figure of eleven sides in a circle , it is required to de- scribe an isosceles triangle on a right line given , whose angles , at the base , SUR SUR.
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... triangle is equal to half a parallelogram of equal base and altitude ; as shewn un- der the head of GEOMETRY . Thirdly . That wherever there is a deviation from the horizontal , there will be a greater ex- tent of surface displayed on a ...
... triangle is equal to half a parallelogram of equal base and altitude ; as shewn un- der the head of GEOMETRY . Thirdly . That wherever there is a deviation from the horizontal , there will be a greater ex- tent of surface displayed on a ...
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... triangle CAB , say 40 yards ; and FD being the altitude of the triangle BDC , which we will take at 80 yards Now the diagonal , CB , be- comes a base common to both triangles ; therefore add the two altitudes together ; namely , 40 to ...
... triangle CAB , say 40 yards ; and FD being the altitude of the triangle BDC , which we will take at 80 yards Now the diagonal , CB , be- comes a base common to both triangles ; therefore add the two altitudes together ; namely , 40 to ...
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... triangles , whose conjoint measurements will amount to its contents . Although the plain - table is not a suffi ... triangle , circumferentor , or some instrument capable of taking heights as well as levels , is ordinarily employed ...
... triangles , whose conjoint measurements will amount to its contents . Although the plain - table is not a suffi ... triangle , circumferentor , or some instrument capable of taking heights as well as levels , is ordinarily employed ...
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... triangles , Fm C , and Cn S , being similar , it appears that the subtangent , m F , is always a fourth proportional to n S , the fluxion of the ordinate , C n , the fluxion of the absciss , and C m , the ordinate : that is , Sn : n G ...
... triangles , Fm C , and Cn S , being similar , it appears that the subtangent , m F , is always a fourth proportional to n S , the fluxion of the ordinate , C n , the fluxion of the absciss , and C m , the ordinate : that is , Sn : n G ...
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