e horizon.Whereforc As the tangent of<t$gr. to the tangent of the inclination of the plane:vSo is the length of the ftyle, to the diftancebetweene the foote of the ftyle andthe verticall point. Thus in the firft exaple of the declining inclining planes,Where the vpper face of the plane looking… … the tangent of 3 6gr. thefame extent will reach in the lineof numbers from 6.00 vnto 4.36, for the diflance *AV be-tweene A thefoote of the flyle and V the verticall point, 2 to find the diflance between thefoote of the flyleand the horizons &U line* As the tangent of the inclination of the…
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