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Hi,
In this question the hints suggest that the perpendicular bisectors meet at the centre of the centre. However, I can't seem to find a logical way as to how they found this? Obviously I can see they intersect at the centre, but if I were to sketch this in an exam I know I would probably not have seen this...80480252041560cd86ca4b4626a199ad.png
Reply 1
Also, what was the point of having the chords there anyway? Was there another approach that could have been taken?
Reply 2
Original post by FamilyFirst
Hi,
In this question the hints suggest that the perpendicular bisectors meet at the centre of the centre. However, I can't seem to find a logical way as to how they found this? Obviously I can see they intersect at the centre, but if I were to sketch this in an exam I know I would probably not have seen this...80480252041560cd86ca4b4626a199ad.png

'The perpendicular bisector of a chord passes through the centre'.

This is something you need to know for C2. You may be more used to it the other way round:

'The perpendicular from the centre to a chord bisects the chord'.


Please use a more descriptive forum title in future, thanks :smile:
(edited 8 years ago)

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