DISSERTATIO
408
Unde eruitur *V M distantia inter Ultrajectum &Ou-dewateram 4965. r. 7.
Et E M distantia inter Leidam & Oudewateram 7980, z, 8.
Problema XXIII.
Triangulum E MS. Leidam . Oudewateram G Gou-dam connettens.
Datur distantia E S inter Leidam & Goudam perProblema XV
Oblervatur angulus SEMAngulus EMSAngulus ES M
Quare datur distantia S M inter Oudewateram &Goudam
5yrb. 9 . 7-17 Ar. z'.3*gr. 53'-n6 gr. 4.
1891, 5. 6.
Problema XXIV.
In Triangulo AEI Haga , Leida , Harlemum.
Ex Problemate XIII datur A E distantia inter Ha-gam & Leidam 4118, o, 7.
Et ex observatis angulus AEI 147 gr. 19'.
Itemque angulus E Ai zo gr. 45'.
Unde reliquus AI E datur n gr. 56'.
Quare invenitur distantia IE inter Harlemum &
Leidam 7055. 9, 4.
Inter Hagam & Harlemum 10754, 3-
Problem \ XXV.
Tab. XV. fig. 15. Dißantia inter Harlemum V Leidamalio modo quafita in Iriangulo 1 A E.
Da.ut per Problema XI distantia inter Leidam &
Noort*