Radians and the good news
The good news is you don’t have to remember
1 radian =57.296∘
Because it is so easy to work out what the degrees are.
So if:
360∘=100% of circle
2πr=360∘
1r=x∘
(Look at our section on percentages)
| 2πrr | = | 360x |
| x | = | 360×r2πr |
| x | = | 360×r2πr |
| x | = | 3602π |
| x | = | 57.296∘ |
