SOLUTION: an arc is 0.04 meters long and is intercepted by a central angle of circumfrence/8 radians. what is the diameter of the circle?

Algebra ->  Trigonometry-basics -> SOLUTION: an arc is 0.04 meters long and is intercepted by a central angle of circumfrence/8 radians. what is the diameter of the circle?      Log On


   



Question 567026: an arc is 0.04 meters long and is intercepted by a central angle of circumfrence/8 radians. what is the diameter of the circle?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
an arc is 0.04 meters long and is intercepted by a central angle of circumfrence/8 radians. what is the diameter of the circle?
-----
Formula: theta(in radians) = (arc length)/(radius)
------
radius = (arc length)/theta
---
radius = (0.04 meters)/(2pi/8)
---
= 0.04/(pi/4)
---
= 0.04*4/pi
===
= 0.16/pi
===============
Therefore diameter = 2(0.16/pi) = 0.32/pi meters
=======================================================
Cheers,
Stan H.