Circle challenge problems. Please help, you'd get a couple of days to work on them (if you need to)

Question

anonymous · Answer

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Circle P and Q are tangent to each other and to the axes as shown.
If PQ=26 and AB=24, find the coordinates of P and Q.

anonymous · Answer

|dw:1366146030026:dw|

Given: Circle P and Circle Q are congruent circles.
XY=8
RP=QS=1
Find PQ

anonymous · Answer

|dw:1366146387110:dw|

Triangle ABC is inscribed in circle E. 
Line AB=AC
AD is perpendicular to BC
EF is perpendicular to AC
AF=6 and ED=1
Find the radius of the circle and the perimeter of the triangle.

anonymous · Answer

Please help!

jim_thompson5910 · Answer

Let 

m = radius of circle P
n = radius of circle Q

Adding this info in gives us this drawing

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