Thread: Practice Math B
View Single Post
  #2  
Old January 13th, 2009, 05:49 PM
Prove It Prove It is offline
MHF Contributor
  
Join Date: Aug 2008
Posts: 1,525
Country:
Thanks: 48
Thanked 603 Times in 565 Posts
Prove It is a name known to allProve It is a name known to allProve It is a name known to allProve It is a name known to allProve It is a name known to allProve It is a name known to all
Default
Quote:
Originally Posted by algebraisabeast View Post
I am reviewing for my math b exam. So I do not know how to solve a problem. I have looked up the answer but I do not know where the numbers have come from in order to solve this problem. The problem that

I am solving is number 25 on pg 12

http://www.jmap.org/JMAP/JMAPArchive...07mathbans.pdf

this is the link thanks
Do you know what a radian is? It's the length of a radius on the circumference.

So in this case, one radian will be equal to 4cm.

So we're figuring out what proportion of the radius 1.38cm makes.

\theta = \frac{1.38}{4} = 0.345.

Does that make sense?
Reply With Quote
The following users thank Prove It for this useful post:
Donate to MHF