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student3330

b, c

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  • tutor_fran
    2019-04-02 17:08:08
    a) 1:1000, 12cm=12000cm=120m; 7cm=7000cm=70m
    120*70=8400m^2

    b)The A4 size : 21.0 x 29.7cm, 7cm*2=14cm 12cm*2=24cm, the max scale 1:500

    c)
    i)120/4=30, 30*2=60
    ii)100*75%=RM75, 75*60*7=RM31500
  • student3330
    2019-04-02 18:38:29
    Can you explain answer of b?
    •  tutor_fran 2019-04-02 17:08:08
    • a) 1:1000, 12cm=12000cm=120m; 7cm=7000cm=70m 120*70=8400m^2 b)The A4 size : 21.0 x 29.7cm, 7cm*2=14cm 12cm*2=24cm, the max scale 1:500 c) i)1 ..
  • tutor_fran
    2019-04-03 12:10:05
    A4 size:
    length: 29.7cm
    width: 21cm

    Diagram 1:
    length: 12cm
    width: 7cm

    max scale:
    12*2=24,<29
    7*2=14,<21

    if
    12*3=36>29, over A4 size,
    7*3=21

    the scale of diagram 1 is 1:1000,
    the max length(24cm) and width(14cm) of new scale in A4 size is 1:500, because the new length and width is double, therefore the new scale double.
    •  student3330 2019-04-02 18:38:29
    • Can you explain answer of b?
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