Monday

July 28, 2014

July 28, 2014

Posted by **Anonymous** on Monday, October 26, 2009 at 4:43pm.

- math -
**Reiny**, Monday, October 26, 2009 at 5:10pmHave you learned the formula

arc length = r(theta) where theta is in radians ?

then theta = arclength/radius

= 1.2/2.4 radians

= 1/2 radians

we know

pi radians = 180º

1 radian = (180/pi)º

.5 radians = (90/pi)º = appr. 28.65º

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