some challenging issues

matyasnovotny

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Jan 14, 2012
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1
Hi, our teacher gave us these two issues as a homework, they're quite difficult, can someone help me?


Nr.1 We need to find the lenghts of a,b and c sides of the triangle.
All we know is: 1 The lenght of the sides of a triangle are in meters, they're also integers.
2 the perimiter of the triangle is 72m
3 The intersection of the longest side of the triangle and its incircle (inscribed) divides the longest side 3:4


Nr.2 All we know is: 1 The triangle is an isosceles triangle (two sides are equal in length)
We need to find the radius R of the circumsribed circle of the triangle and the radius r of the inscribed circle of the triangle with the use of variables


sorry for my bad english, its not my native language, I've moved to australia a year ago;)

I will be REALLY THANKFUL for any help provided!:)
 
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