Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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#1 2007-02-25 22:46:31
- g0d
- Guest
Circles and lines :o
I got a problem for you guys. 
I really don't know where to start with this, I got a few ideas but they don't really help me anyway.
Just somewhere to start from would be good. 
Thanks 
#2 2007-02-25 22:47:14
- g0d
- Guest
Re: Circles and lines :o
#3 2007-02-25 22:52:10
- g0d
- Guest
Re: Circles and lines :o
There we go. X.x
#4 2007-02-25 22:53:34
- MathsIsFun
- Administrator
- Registered: 2005-01-21
- Posts: 7,711
Re: Circles and lines :o
I don't have much time, but the concept of Similar triangles should help, plus you know that the distance OP is (50+20)=70
For example PQ/OQ = 20/50
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#5 2007-02-26 00:37:23
- George,Y
- Member
- Registered: 2006-03-12
- Posts: 1,379
Re: Circles and lines :o
140/3
X'(y-Xβ)=0
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#6 2007-02-26 00:41:51
- g0d
- Guest
Re: Circles and lines :o
Cheers guys.
#7 2007-02-26 01:08:40
- g0d
- Guest
Re: Circles and lines :o
Ahh, love this forum. I got a clue on how to do and an answer to check it. Got it now, though I did it a different way to George. I got 28/.6 gives same answer though. Gj guys.
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