Julia cuts her round birthday cake into 12 equal slices. she serves 7 of the slices. what is the angle measure of the remaining portion of the cake.

Hi there!

Assuming all are equal slices, we know that each slice would contain 30 degrees. Knowing this, 7 of the slices were served, so 5 are left. By multiplying 5 x 30, we can figure out the angle measure of the remaining portion of the cake. Doing this leaves us with 150 degrees left.

Hope this helps!! :)