+73 A circle has radius 8 units, and a central angle is drawn in. The length of the arc defined by the central angle is 4π units. Find the area of the sector outlined by this arc.
+118677 A circle has radius 8 units, and a central angle is drawn in. The length of the arc defined by the central angle is 4π units. Find the area of the sector outlined by this arc.
The angle must be in radians.
The circumference of a circle is \(2\pi r\) and there are \(2\pi\) radians in a circle.
so the arc length will be \(\frac{\theta}{2\pi}*2\pi r = \theta r\)
You are told that r = 8 and you are given the arc length so set up a simple equation and solve for theta.
Now find the area.
This is a big enough start please no one else add to it unless GM gives a seriously considered response question.
