Question 91319
the circumferance of a circle is 2pir or 
1/2*2pir=100 
pir=100
3.14r=100
r=100/3.14
r=31.85m.
area of a circle is pir^2
a=3.14*31.85^31.85
a=3.14*1014.4
a=3184m^2