-2y>12x-42
y<21-6x
so a is true
A bisector splits an angle into two equal angles.
The answer is the last one: it splits the angle into two congruent angles.
C = 2<span>πr
C = 2 * 3.14 * 5.1
C = 32.028
You can round that to A. 32.03, because if the decimal after 2 is greater than it, then you round it to the number which is higher than it, which is 3. </span>