Ineed ! jenny's birthday cake is circular and has a 30 cm radius. her slice creates an arc of with a central angle of 120 degrees. what is the area of jenny's slice of cake? give your answer in terms of pi.

Ok, so if the angle is 120 degrees, its one third of the full cake (which is 360 degrees). So the area of the whole circle (worked out with area = pi * r^2 where r is 30) gives 900*pi, and so one third of that (because her slice is one third)  is 300pi.

It should be a or d i’m not sure

11 mintues is the naswer