Someone please answer this geometry word problem for me im sobbing so hard it’s for a test im so desperate and nobody’s helping

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

Listed in the table is the percentage of students who chose each kind of juice at lunchtime. use the table to determine the measure of the central angle you would draw to represent orange juice in a circle graph

Me with this one question, and i'll upvote the brainliest answer