Qualification > Math
IGCSE MATHS Doubts
xMilishax:
--- Quote from: ~VIN1094~ on May 12, 2010, 07:50:29 am ---Its easy .. how could i not get it .. they ask draw the locus of the point of 'D' .. meaning where was it initially .. at 90 o anticlockwise ..
hope the diag explains the rest .. ;)
--- End quote ---
OMG! Thanks so much! By the way..where did you draw the big arc from? Jus wanna comfirm..Im bad at locus :\
Baladya:
--- Quote from: ~VIN1094~ on May 12, 2010, 07:50:29 am ---Its easy .. how could i not get it .. they ask draw the locus of the point of 'D' .. meaning where was it initially .. at 90 o anticlockwise ..
hope the diag explains the rest .. ;)
--- End quote ---
K isn't that what i said?? U don't even need to draw the lines inside. Just put the compass on B and open it to D, then rotate to the left until it will meet D'.
Vin:
--- Quote from: A@di on May 12, 2010, 07:33:52 am ---shud i answer this or ur exam is over? i remember i have alreeady answered this..
--- End quote ---
yes pls. A@di, i hav the same doubt .. :) ASAP .. =)
is it .. sqrt x {y} .. i mean it has to be .. :-\
xMilishax:
--- Quote from: Baladya on May 12, 2010, 07:56:43 am ---K isn't that what i said?? U don't even need to draw the lines inside. Just put the compass on B and open it to D, then rotate to the left until it will meet D'.
--- End quote ---
Yes, you were correct but the mark scheme says stuff about BD radius and so I think we need to show those lines. :)
Vin:
--- Quote from: xMilishax on May 12, 2010, 07:55:45 am ---OMG! Thanks so much! By the way..where did you draw the big arc from? Jus wanna comfirm..Im bad at locus :\
--- End quote ---
compass at B .. draw radius BD .. :)
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