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# C1 Circle question Watch

1. Hi.
Im not sure of the best method or if the method will work. Can for question 9(ii) i use the intersection of the perpendicular bisectors of the two chords to find the center of the circle.
Thanks.
http://www.ocr.org.uk/Images/62239-q...hematics-1.pdf
2. (Original post by SamuelN98)
Hi.
Im not sure of the best method or if the method will work. Can for question 9(ii) i use the intersection of the perpendicular bisectors of the two chords to find the center of the circle.
Thanks.
http://www.ocr.org.uk/Images/62239-q...hematics-1.pdf
Yeah, I think that would be the neatest approach.
3. (Original post by Zacken)
Yeah, I think that would be the neatest approach.
Thanks.Is the fact that it makes a right angle triangle a help any calculations, im a bit rusty on circle properties?
4. (Original post by SamuelN98)
Thanks.Is the fact that it makes a right angle triangle a help any calculations, im a bit rusty on circle properties?
yh you have to use the circle theorem rule about angles in a semi circle

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