Find the area of the sector formed by central angle (theta) = 3pi/5 in a circle of radius r=4m.

Question

lalaly · Answer

$$\underline{\text{area of sector}}=\frac{1}{2}r^2 \theta$$$$=\frac{1}{2}(4m)(\frac{3}{5}\pi)$$

anonymous · Answer

So, would I be left with 2m (3/5pi)?
Then, left with 6pi/5?

lalaly · Answer

the m is meters? or just a variable?

anonymous · Answer

It's meters.

lalaly · Answer

oh then yeah u got it:)

anonymous · Answer

Well, when I put it in the calculator, it came out to be 3.77. That answer is wrong somehow. :/

lalaly · Answer

why wrong? ..do u have the right answer?

anonymous · Answer

I'm pretty sure I did it right, by the formula you gave me. That is a correct formula.

lalaly · Answer

ohhhh i did something wrong lol

lalaly · Answer

forgot to square the radius$$A=\frac{1}{2}(4)^2(\frac{3}{5}\pi)$$

lalaly · Answer

Im sorry -_-'

anonymous · Answer

Oh!!!
No, it's fine!

lalaly · Answer

Now you'll get it right:)

anonymous · Answer

Mhm!!! :D

lalaly · Answer

anonymous · Answer

Got it! :) Thank you!!

lalaly · Answer

:)