<PRE><B>Question 322042</B>
2 answer : 

1) 4^2+2^2=20=C1^2
2) 4^2=2^2+10=2^2+C2^2

C1=Sqrt(20) : 4.472

20....|4,472
_______________
16....|
_______________
40.0..|84x4=336
336...|
________________
640.0.|887x7=6209
6209..|
_________________
1910.0|8942x2

C2=Sqrt(10) : 3.163

10.....|3,163
9......|
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10.0...|61x1=61
61.....|
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390.0..|626x6=3756
3756...|
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2440.0 |6322x2=..</PRE>