Can someone help me find the central angle of a circle?

Question

anonymous · Answer

wat u ned help wit

hba · Answer

Do you have a particular question?

hba · Answer

$$central \angle = \frac{ arc length * 360  }{  circumference}$$

and

$$ circumference=\pi r^2$$

wolf1728 · Answer

hba - with that formula the central angle will be in radians.

wolf1728 · Answer

Wait a minute - I see it is being multiplied by 360 degrees.
Okay,

wolf1728 · Answer

and it seems the person with the question LaLaLawson isn't even here.

anonymous · Answer

I Am Here, Im New To This Site, And Still Trying To Figure Out How To Work It.

wolf1728 · Answer

Welcome to the site.

anonymous · Answer

Thank You, Ill Post The Question Now.

anonymous · Answer

attachment

shadowlegendx · Answer

$\bbox[5pt, #33fd33 ,border:5px solid #872af0]{\bf\huge\ Welcome\ To\ OpenStudy!!!}$

shadowlegendx · Answer

hba such copy

wolf1728 · Answer

The student total = 545
Central angle = (190/545) * 360

anonymous · Answer

So, I would take 545 Divided by 190? Im sorry, im tired, and confused.

wolf1728 · Answer

Okay 190/545= .35

wolf1728 · Answer

Now multiply that by 360°

anonymous · Answer

126?

wolf1728 · Answer

Actually it is 125.5°

anonymous · Answer

Thank you, i also have to round it to the nearest tenth, 125.5 to the nearest tenth would be 130?

wolf1728 · Answer

NO, tenth means one tenth so rounded to one tenth means the first digit after the decimal point.
So 125.5 is the answer you need.

anonymous · Answer

Oh Okay, I'm sorry. I Just want to make sure i fully understand :-)

wolf1728 · Answer

Well, I think you do now.

anonymous · Answer

Yes i do, thank you.

wolf1728 · Answer

u r welcome