Geometrische aufgabensammlung. Ausgabe A: für gymnasien ... von Dr. W. Lietzmann.
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142 ntid)!eitere 43. ein ~tratenbüficetl (iig. 212) mit bem ~c)eitel S wtirb bon 5wei qaraltelen g1 unb g2 gefcnitten. entfpreceenbe ~c)nittpunfte feien A1 unb A2, B1 unb B', C, unb C2 uff. 3etreife bie T1roportion A1,B: B C = A2:B2 B2C,. 44. ftbertrage bae fortlaufenbe S8ertättnit a: b: c: d ber Seitftreden auf einer beliebigen 5eraben burc gentrafprojietion (b. t. mit )ilfe eine~ ~trat)enbüf/cetf) auf eine beliebige, ber erften parallefe 0(erabe. 45. 2öfe bie 2Infg. 44, bo mint ber S3eftimmung, bah bie erfte, a enttpretenbe Seilfirecde auf ber neuen ßarallelen vorgeftriebene 3rögie tat. 46. Seite eine gegebene ~trede AB burd) gentralproiettion in a) 3, b) 5, c) 7 gteicte Zeite. 47. Dormuliere ben pWeiten 2eit bee erften Gtratteniante, inbem bu berüdii fittigft, bat an bie etette U3eier parateter ~ertaben eine Tarattetenfc)ar, an bie 2telfe eine~ S intete mit bwei ~teenietn ein @traftenbüiifce treten fann. 48. (Umtetrrung be$ ^weiten Seilte bee erften ~traltenfabee). UnterfucCe, ob ee eine Umtet~rnng bee twoeiten Zeilet bee erften ~traltenfabe~ gibt. nittrukfttina naufta be.n, 49. G5egeben ift eine gtreee AB bon 10 cm itänge; auf itrer 8erlängerung über A )inat tliegt, Uon A um 5 cm entfernt, ber 3untt C. tn wettem 58erätt/nie fteten bie 2treden CA nnb CB? 50. (tufere `eitnng.) 3eftimme auf ben Serlängerungen ber gegebenen etrede AB einen ~3untt C fo, baf a) AC:BC= 1:2; b) A: BC= 2: 3; c) AC: BCG= 2: 1; d) AC:BC= 3: 2 ift. 51. tbei Sbanberer, uon benen ber eine ftünbtitc 4 kkm, ber anbere 5 km äurüidtegt, geten auf einer burt) bie 7 km ioneinanber entfernten Orte A unb B fiiürenben 2trafe in einer Stittung, ber eine ton A, ber anbere sont B aun. S3o )olt ber eine ben anberen ein? 52. Seile eine 2trede innertic nnb äun ertitf im 3Sertäftnie a) 2:5, b) 1: 4, c) 3: 7, d) m: n, wto m unb n atl %treden gegeben jinb. 53. eine 2trede ift innerlic unb aufertict im 3ertaltnie x:y geteit. 3ie tanbert ber innere unb ber aänere Zeitfunft, wenn bei Donftant bleibenbent x a) y rwai)ft, b) y abnimmt? c) Vie roanbern bie Seilptnfte, wenn ber et~ru) - aunät~ft uon 0 bie 1 (wo liegen bie 3utnfte in biejem.nugenblid?), bann bi\ oo bäitft? 54. 3twei Oeraben ft~neiben fidt in einem unAugängicten, nitdt auf bem 8eictenblatt liegenben S3unfte. sonftruiere mit gitfe bee erften ~traltenifatee (~e raben, bie bturc biefen nuntt geten. 55. Sn einem Zreied ABC ift bie (eite BC 5u tatbieren unter ber 53or, anuietung, baf B unb C unnugänglic~ jinb. 5 fjei ber ~3unft A a) 8ugänglitc, b) ant~ unaugangtlid. gü4re bie Sonftrnttion mit eilfe bee erften ~traltenfatee aun.
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About this Item
- Title
- Geometrische aufgabensammlung. Ausgabe A: für gymnasien ... von Dr. W. Lietzmann.
- Author
- Lietzmann, Walther, 1880-1959.
- Canvas
- Page 129
- Publication
- Leipzig [etc.]: B. G. Teubner,
- 1916-20.
- Subject terms
- Geometry -- Problems, exercises, etc.
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"Geometrische aufgabensammlung. Ausgabe A: für gymnasien ... von Dr. W. Lietzmann." In the digital collection University of Michigan Historical Math Collection. https://name.umdl.umich.edu/acv4752.0001.001. University of Michigan Library Digital Collections. Accessed May 2, 2025.