The radius of the two circular fields is in the ratio 4: 10 the area of the second field is what percent greater than the area of the first?  Choose one:	A) 72%	B) 96%	C) 94%	D) 84%	E) 82%
r = 4 Ï€r2 = 16   r = 10 Ï€r2 = 100   100 Ï€ â€“ 84 Ï€   100 ---- ? =&gt;84%.Answer:84%
<result>D</result>
The radius of the two circular fields is in the ratio 4: 10 the area of the second field is what percent greater than the area of the first?