Consider a quarter of a circle of radius 49. Let r be the radius of the circle inscribed in this quarter of a circle. Find r.
Choose the correct option:
A) 49*(sqr2 -1)
B) 58*(sqr3 -1)
C) 40*(sqr7 - 1)
D) 12* (sqr7 -1)
E) None of these
I got 49/(sqr2 +1) and just forgot to multiply by (sqr2 -1).   49*(sqr2 -1)nswer is 49*(sqr2 -1)
<result>A</result>
Consider a quarter of a circle of radius 49. Let r be the radius of the circle inscribed in this quarter of a circle. Find r.