Helppp it’s due in a couple minutes!!!

Me find the measure to side c and the process to solve the problem you appreciate it : )

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

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85