Test 7 Section 3 #18 please

To convert between radians and degrees, you just need to remember that a full circle, 360°, is the same as 2*π* radians. You can use that fact to solve any degree/radian conversion question with a simple ratio:

In this case, we take the 720° we’re given and solve thusly:

That tells you that the *a* in *aπ* is equal to 4.