Answers

2015-12-21T21:08:16+05:30
Using distance formula
d= sqrt((X2-X1)^2+(Y2-Y1)^2)
5=sqrt((4-h)^2+(5-3)^2)
5=sqrt((4-h)^2+2^2)
5=sqrt((4-h)^2+4)
Squaring both sides
25=(4-h)^2+4
(4-h)^2=21
4-h=sqrt(21)
h=4-sqrt(21)
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