429415DE MAGNITUDINE TERRÆ.
Problema XXXVIII.
Triangulum R T V. Dordracum, Willemſtadium, Breda.
11 Per Problema XXXVII datur R T diſtantia inter Dor- \\ dracum & Willemſtadium # 5429, 8, 7.
Ex obſervatis autem angulus T R V # 66 gr. 13`;.
Angulus R T V # 67 gr. 59`;.
Angulus R V T # 45 gr. 48`;.
Unde datur T V diſtantia inter Willemſtadium & Bre- \\ dam # 6930, 7, 8.
Et R V diſtantia inter Dordracum & Bredam # 7038, 6.
Quam in Problemate XXXV invenimus # 7034.
Adeoque parum diſcrepant.
Problema XXXIX.
Triangulum T V Q Willemſtadium, Breda,
Bergaad Somum.
22 Bergaad Somum.
In Problemate XXXVIII datur V T diſtantia inter \\ Bredam & Willemſtadium # 6930, 7, 8.
Obſervatur angulus V T Q # 89 gr. 23`;.
Angulus T V Q # 43 gr. 23`;.
Angulus V Q T # 47 gr. 14`;.
Hinc invenitur T Q diſtantia inter Willemſtadium \\ & Bergam # 6484, 7, 1.
Et Q V diſtantia Bredæ & Bergæ # 9440, 3, 2.
Problema XL.
Triangulum R V Q Dordracum, Breda, Berga
ad Somum.
33 ad Somum.
Per Problema XXXV, datur V R diſtantia inter Dor- \\ dracum & Bredam # 7034.
Per Problema XXXIX datur V Q diſtantia inter Bre-
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