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    i hope you can see the picture, i am completely thrown with this one. my previous answer was as follows but was wrong if someone can help me understand this would be much appreciated.

    area 1 = 400mm2
    area 2 = 400 mm2
    area 3 = 300mm2

    centre 1 = 5mm
    centre 2 = 30mm
    centre 3 = 55mm

    (c1a1) + (c3a2) + (c3a3) / (a1 + a2 + a3) = 27.7272mm WRONG!!

    HELP xx
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    (Original post by lauren088)
    Name:  pic.jpg
Views: 76
Size:  82.0 KB

    i hope you can see the picture, i am completely thrown with this one. my previous answer was as follows but was wrong if someone can help me understand this would be much appreciated.

    area 1 = 400mm2
    area 2 = 400 mm2
    area 3 = 300mm2

    centre 1 = 5mm
    centre 2 = 30mm
    centre 3 = 55mm

    (c1a1) + (c3a2) + (c3a3) / (a1 + a2 + a3) = 27.7272mm WRONG!!

    HELP xx
    You have worked out the distance from the top rather than the distance from the bottom?
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    any idea how i do it from the bottom?
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    (Original post by lauren088)
    any idea how i do it from the bottom?
    60 - your answer...
 
 
 
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