The arc length is given by:
2πr(theta)/360
given the circumference is 72 cm, the arc length will be:
AB=45/360*C
AB=45/360*72
AB=9 cm
the answer is 9 cm
The answer to this question is 96 because 800/100 = 8 which is 1% of the 800 students. then times it by 12 to give you the answer
