Question

How do I turn this rad into degrees with no calculator? 4pi/5?

Answer 1

I hope this helps you



pi=180 degree



4.180/5


4.36


144

Answer 2

You need to know that pi rad = 180°

Then 4 pi / 5 rad = 4 (180°) / 5

Those are numbers that you can multiply and divide wihout calculator and the result is 720 °/ 5 = 144 °