Exercicios - Geometria Descritiva - Reta

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GEOMETRIA DESCRITIVA UNIDADE 01

GEOMETRIA DESCRITIVA

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PLANO DE PROJEO

PHA ( ) _______________________PHP ( ) _______________________ I DIEDRO: _____________________PVS ( ) _______________________ II DIEDRO: ____________________PVI ( ) ________________________ III DIEDRO: ____________________LT ( ) ______________________ IV DIEDRO: ____________________

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GEOMETRIA DESCRITIVA UNIDADE 01

Linha Terra ( LT ) _____________________________________________________________________________________________________________________________

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ngulo Diedro ________________________________________________________________________________________________________________________________

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PURA______________________________________________________________________

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PLANIFICAO DO SISTEMA

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GEOMETRIA DESCRITIVA UNIDADE 02

ESTUDO DO PONTO

Um ponto pode ser representado por suas coordenadas descritas.A (X, Y, Z) sendo: X - ______________________________

Y - ______________________________Z - ______________________________

ABISCISSA:______________________________________________________________________

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AFASTAMENTO:

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COTA:______________________________________________________________________

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POSIES DE UM PONTO:

Exerccios:A (3,2,3) B (2,2,3) C (2,0,2) D (0,2,1) E (2,0,0) F (2,2,0)

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GEOMETRIA DESCRITIVA UNIDADE 03

ESTUDO DA RETA______________________________________________________________________________

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REPRESENTAO DA RETA

Exerccios:

1)A (3,2,3)B (2,2,3)

2)C (2,2,3)D (2,1,3)

3)E (3,2,3)F (1,4,3)

4)G (2,3,2)

H (2,3,3)

5)I (4,2,3)

J (2,2,4)

6)L (3,3,1)

M (3,1,3)

Representao Plana

Representao Espacial

Representao em pura

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GEOMETRIA DESCRITIVA UNIDADE 03

POSIES DA RETA

- Em relao a um plano:__________________________________________________________________________________________________________________________________________________________

A)_____________________________________________________________________B)_____________________________________________________________________C)_____________________________________________________________________

- Em relao aos planos de projeo:__________________________________________________________________________________________________________________________________________________________

1- Fronto-horizontal2- Reta horizontal (Reta de nvel)3- Reta frontal ou Reta de frente4- Reta de topo5- Reta vertical6- Reta de perfil7- Reta oblqua (Reta genrica ou Reta qualquer)

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1- Fronto-horizontal ou reta paralela linha de terra

Caractersticas:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Representao em pura:A (4,2,3) B (1,2,3)

Trao de uma reta:_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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2- Reta Horizontal (Reta de nvel)

Caractersticas:______________________________________________________________________

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Representao espacial e em pura:A (4,1,2) B (1,4,2)

3- Reta frontal ou reta de frente

Caractersticas:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Representao espacial e em pura:

A (4,2,1) B (1,2,4)

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4- Reta de topo

Caractersticas:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Representao em pura:A (3,1,2) B (3,4,2)

5- Reta vertical

Caractersticas:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Representao em pura:A (3,2,1) B (3,2,4)

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6- Reta de perfil

Caractersticas:___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Representao em pura:A (3,4,1) B (3,1,4)A (3,1,3) B (3,4,4)

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7- Reta oblqua (reta genrica ou reta qualquer)

Caractersticas:

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Representao em pura:A (3,2,1) B (4,1,3)

RESUMO

Representao da reta em pura, no I DIEDRO

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GEOMETRIA DESCRITIVA UNIDADE 04

POSIO RELATIVA DE DUAS RETAS

Duas retas no espao podem ser:1) Retas Coplanares:paralelas e concorrentes.2) Retas no-coplanares:reversas e reversas ortogonais.

RETAS PARALELASDuas retas so paralelas quando satisfazem as seguintes condies.