What is the value of y in the triangle?

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)