Question 1186572
<br>
"How long does the yo-yo traveled"?!<br>
Incredibly poor English...!<br>
Maybe "how far does the yo-yo travel?".<br>
If it traveled a full circle, the distance it traveled would be 2pi times the radius, which is the distance from the yo-yo to his finger, 12 cm.<br>
The fraction of a circle it travels when moving through an angle of 155 degrees is 155/360.  So<br>
ANSWER: {{{(155/360)((2pi)(12))}}}<br>
Perform the calculation and express the answer in whatever form is needed.<br>