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Topic: Geometry Problem - Help Needed!
Replies: 2   Last Post: Apr 10, 2006 1:58 PM

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Vijaya Prasad Nalluri

Posts: 8
From: India
Registered: 4/10/06
Re: Geometry Problem - Help Needed!
Posted: Apr 10, 2006 1:58 PM
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In standard notation:
a = 4, b = 7.5, c = 8.5. To find R/r
First observe that the triangle is right angled at C
So R = c/2 and r = s - c
Here 2s = a + b + c = 20, s = 10
So R = 4.25 and r = 1.5
Hence R/r = 17/6.

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