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CHAP. II.

Of Projections made on A-scending Planes? and to Per-pendicular Heights,

CASE XVIII.

T HE greatest: Raiidon of aPieceon the Plane of the Horizonbeing 8000, Quere her great-est Randon on a Plane whose Ascent is6°. Zo'.

R + J', 6 °. 3° f • R.1 : 8000 : 7186.4dieRandohtequired. {per Cor. 4. Theo.!a.) Note , The most exact and expe-ditious Way to perform this and thelike Operations is by the natural Sines - f