Giancoli 7th Edition, Chapter 8, Problem 3(1:39) Chapter 8, Problem 3 is solved. VIEW FULL ANSWER View sample solution

## Comments

wait but isn't the arclength not the diameter itself though? wouldn't you have to set it to 2pi (because you found the arclength of the crater it would be 180 degrees) and then solve for r, and follow up with multiplying it by 2?