In question 2 i got the answer as 2.707 is it correct?

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

Aregular polygon has angkes of size 150° each.how many side has the polygon

What will a positive and a negative charge do if they are separated from each other?