Pembinaan Geometri Satah

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Slide 1

HBLS2103_V2 LUKISAN TEKNIK DAN CAD MOHD ZEID ABU BAKAR

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Pembinaan Geometri Satah Membahagikan satu garisan kepada dua bahagian yang sama

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With centre P and any radius greater than half PR, draw arcs above and below the line

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With centre R draw arcs of the same radius to cut the previous ones

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The line drawn through the intersections of the arcs will bisect the given line PR at S S

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Membahagikan garisan kepada lima bahagian yang sama

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R Draw line PR at any convenient angle to PQ

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R Step off along PR the required number of divisions (eg. 5). These may be of any convenient length, but equal

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R Step off along PR the required number of divisions (eg. 5). These may be of any convenient length, but equal

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R Step off along PR the required number of divisions (eg. 5). These may be of any convenient length, but equal

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R Joint the last number to point Q

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R Draw lines parallel to this line from the other numbers. PQ is now divided into five equal parts

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R Draw lines parallel to this line from the other numbers. PQ is now divided into five equal parts

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R Draw lines parallel to this line from the other numbers. PQ is now divided into five equal parts

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R Draw lines parallel to this line from the other numbers. PQ is now divided into five equal parts

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Melukis garisan serenjang

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Mark the given point P

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With centre P and any convenient radius, draw arcs to intersect at C and D C D

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C D With centres C and D and any convenient radius, draw arcs to intersect at E

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C D With centres C and D and any convenient radius, draw arcs to intersect at E E

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C D E A line drawn from E through the intersection of the arcs is the perpendicular

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C D E A line drawn from E through the intersection of the arcs is the perpendicular ( 90˚ )

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Membahagikan sudut kepada dua bahagian yang sama Membina sudut 60

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30º

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30º

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30º

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30º 30º

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Membina bulatan terterap lilit segi tiga

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Membina bulatan terterap dalam segi tiga

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Membina segi tiga dengan diberi panjang tiga sisi

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Membina segi tiga dengan diberi panjang dua sisi dan sudut.

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Membina pentagon sekata dengan diberi panjang satu sisi

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Membina pentagon sekata terterap lilit dalam bulatan

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Membina heksagon sekata dengan diberi jarak di antara rata

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Membina heksagon sekata dengan diberi jarak di antara penjuru

Tags: technical drawing

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