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Mathematics 10 Online
OpenStudy (sbuck98):

Circle help

OpenStudy (sbuck98):

OpenStudy (sbuck98):

What formula do I use?

OpenStudy (liv1234):

\[A=R(radius)*3.14\]

OpenStudy (liv1234):

The radius is half of the diameter, so 12.5 *3.14=?

OpenStudy (liv1234):

15.5*3.14=?

OpenStudy (sbuck98):

Thankyou! So,39.25 & 48.67

OpenStudy (liv1234):

39.25 48.67 Then you have to subtract these two numbers!

OpenStudy (liv1234):

48.67-39.25=?

OpenStudy (sbuck98):

Okay so I got 9.42

OpenStudy (liv1234):

That's your answer! Option B, 9.

OpenStudy (sbuck98):

I do the same for this one right?

OpenStudy (liv1234):

I'm not too sure about this one, but I'm pretty sure you don't do the same thing for this one, you still need the radius which is going to be 3.5 (7/2)

OpenStudy (sbuck98):

I got D

OpenStudy (liv1234):

How did you get that?

OpenStudy (sbuck98):

I'm wrong, thought it said 1,999 & the first way you showed me... This one's confusing

OpenStudy (liv1234):

Yeah, it is, I don't wanna give you the wrong answer either, I wish I could help!

OpenStudy (sbuck98):

Thanks for everything though!

OpenStudy (liv1234):

No problem! Again, I wish I could help, but tag me if you ever need any other help!

OpenStudy (sbuck98):

ok!

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