2. What make Titan and Enceladus potentially capable of sustaining life? both have a dense atmosphere
both have underground oceans
all of the above
d
none of the above

if he does not use open the compass the a width greater than half of po, he will not be able to find the midpoint of the line, without the midpoint of the line, he will not be able to bisect the line.   to find the midpoint of a line the circles drawn with a compass must either intersect or be touching.