x Turn on thread page Beta
 You are Here: Home >< Maths

# Another coordinate geometry question watch

1. I'm stuck on the very last question when it says determine the equation of the circle. I will post the answers to the previous parts of the question. Will give rep when I get back on my comp. What's confusing me is the fact that we need to know the centre of the circle in order to get the equation and that's what I'm having problem doing ...I've got the feeling I may need to draw a triangle somewhere on the diagram anyway the answers are : (i) 2 (ii) 6,4 (iii) 2x+y-8=0 (iv) (2.8, 2.4 ) and (v) (x-3) ^2 + ( y -2 ) ^2 =13
Posted from TSR Mobile
Attached Images

2. Could you see two points that might form the diameter of the circle? It would be easy to find the centre if you knew that.
3. (Original post by CasualSoul)
I'm stuck on the very last question when it says determine the equation of the circle. I will post the answers to the previous parts of the question. Will give rep when I get back on my comp. What's confusing me is the fact that we need to know the centre of the circle in order to get the equation and that's what I'm having problem doing ...I've got the feeling I may need to draw a triangle somewhere on the diagram anyway the answers are : (i) 2 (ii) 6,4 (iii) 2x+y-8=0 (iv) (2.8, 2.4 ) and (v) (x-3) ^2 + ( y -2 ) ^2 =13
Posted from TSR Mobile
Which one do you need help with
4. Sorry im being an idiot yeah look for two points that many from diameter
remeber though it had to encompas all of the shape so dont pick a set that make the diameter too small
5. Got it yet, the points are o and r making the diameter making the centre 6/2 ,4,2
all you have to do now is find the diameter using pythagoras and radius by having then using this you can form the equation
6. (Original post by Anony1234)
Got it yet, the points are o and r making the diameter making the centre 6/2 ,4,2
all you have to do now is find the diameter using pythagoras and radius by having then using this you can form the equation
soz forgot to reply. I managed to do it and gave you rep when I did (see your above post). thanks :d

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: April 25, 2013
Today on TSR

### Four things top students are doing

Over the Easter break

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams