Drawing.

- anonymous

Drawing.

- Stacey Warren - Expert brainly.com

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- anonymous

|dw:1338436072983:dw|

- anonymous

AB has 150 degrees. Whats the area of AOB?

- anonymous

...which one is o...i only see A, B, &C...

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## More answers

- anonymous

sorry !! O is the center

- anonymous

|dw:1338436524089:dw|

- anonymous

okay... soo hold on

- anonymous

|dw:1338436260093:dw|

- anonymous

...but angle a-b....

- anonymous

|dw:1338436293890:dw| would the angel be something like that?...

- anonymous

Sowwy, idk D: i hope someone else can help you...

- anonymous

|dw:1338436594595:dw|

- anonymous

awh ok :(

- anonymous

very sorry.

- anonymous

Hey Satellite, can you help me?

- anonymous

|dw:1338436556319:dw| this area?

- anonymous

Yeah!

- anonymous

so total area if the radius is 4 is \(16\pi\) and you are missing a piece. the total number of degrees is 360 so you are missing a \(\frac{150}{360}\) of the circle leaving you with \(\frac{210}{360}=\frac{7}{12}\) of the circle

- anonymous

your last job is to multiply \(16\pi\times \frac{7}{12}\)

- anonymous

Ah I dont understand :( I hate math so much..

- anonymous

ok lets go slow

- anonymous

radius of the circle is 4 right? i mean from the picture

- anonymous

When my teacher did it in class, it was much faster and more simple I just forget what he did..

- anonymous

yeah

- anonymous

and the area of a circle with radius \(r\) is \(\pi r^2\) in this case \(\pi\times 4^2=16\pi\) so if a piece was not missing, the whole area would be \(16\pi\)

- anonymous

4 times 150 = 600.. 600 / 360 = 120 degrees?

- anonymous

so the only question is, what portion of the circle is left

- anonymous

hold on degrees is a measure of an angle. area measures something entirely different

- anonymous

Oh yeah im sorry

- anonymous

I was doing length

- anonymous

the whole circle contains 360 degrees and you are missing 150 of them so you have left \(360-150=210\) degrees

- anonymous

It's Area im trying to find sorry

- anonymous

therefore you have what portion of the whole circle left shaded? it is \[\frac{210}{360}=\frac{7}{12}\] i.e you have seven twelfth of the circle left shaded

- anonymous

the entire circle has area \(16\pi\) and you have \(\frac{7}{12}\) of it left, so your area is \[16\pi\times \frac{7}{12}=\frac{28\pi}{3}\]

- anonymous

You know what excuse my language. flutter math. All you need in life is Add Subtract Multiply and Divide. No, i'm not going to be a engineer, so needing all of this is out of the question. This kind of stuff does not work well in my brain. I feel it's unfair that us less fortunate people have to pay the price. Bad grades and getting spanked. No matter what I do I just dont get this stuff, I try really hard. I've been studying for this final exam for about 5 hours now, and I probably learned nothing. This is a load of crap and it's not fair. Sorry for wasting you time with this problem i'll be going to sleep now do to its 12:15 am here. Thanks.

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