Answer:
3/5=12/20
12/16=6/8
Step-by-step explanation:
The length of AA' is the squareroot of 29.
The first thing we must do is calculate the circumeference:

now, calculate the angle of arc
360° = 49.612
360° - 66.4° - 180° = x
x = 113.6°
now, to calculate the arc length it would be:
Chloe can buy 7 pencil boxes and have 1 dollar left