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K.Binks
 one year ago
Point C is the center of the circle. Angle ACB measures 49 degrees. What is the measure of arc ADB?
K.Binks
 one year ago
Point C is the center of the circle. Angle ACB measures 49 degrees. What is the measure of arc ADB?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What's your insight on this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Intuitively you would think that the degree is the same when line is drawn connecting the three points

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0However after careful scrutiny you would notice that D is indeed not on the straight line

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know the radius of the circle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It would be impossible to determine the length without knowing the radius unless you are talking in ratios.

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0I'm not really sure, I don't remember the cirlce's unit very well. Is the arc the same as the angle? or doubled? or I could be totally wrong. What I have in the question is all the information I have.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[49 \times \frac{ \pi }{ 180 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but it still doesnt make sense since you dont have the radius or any information of D

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0So then how do I answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what options have you got?

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0None, this one isn't multiple choice

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if the circle has a radius of 1 unit, its something close to pi*radius. thats all i can tell you, sorry

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0It doesn't tell me the radius or diameter at all... Thanks anyway

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use the formula \[l=r.\theta\] where l is arc length, r is radius and theta is the angle subtended(measured in radians) clearly r is constant for a given circle so \[l_{1}=r.\theta_{1}\] and \[l_{2}=r.\theta_{2}\]\[\frac{l_{2}}{l_{1}}=\frac{\theta_{2}}{\theta_{1}}\] Using this we can calculate for arc length \[l_{2}=\frac{\theta_{2}}{\theta_{1}}.l_{1}\] Now you are neither given l1 nor theta 2, although one would think theta 2 is 180 degrees, it could be wrong, is there more information given in the question??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You don't need to convert to radians here though, if u just use degrees for both angles u'll be fine as their units cancel out

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0No, that's it, thats all I was given

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Then there is definitely some information missing in the question I think, it is incomplete.

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0I'm just looking for the arc length, is there no way to get that from this information? I thought I just needed to find the length of AB then subtract that from 180 and the rest was ADB. But I can't solve for AB without the radius?

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0Or I'm completely wrong... I can just skip this one, if it cant be solved

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0I meant 360, not 180**

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0I'll just skip this one I guess, thank ya'll anyway

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1If it is asking for the degree measure of the arc, it is equal to the central angle measure of the circle.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1I'm guessing that A, C, and D are supposed to be in a straight line.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Any ideas using that info?

K.Binks
 one year ago
Best ResponseYou've already chosen the best response.0How do I solve for the arc measure that way? The whole circle equals 360, I'm given the arc AB, which is 49 (right?) and they're looking for arc ADB, so just 36049= 311.. right? @JoannaBlackwelder

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Yep, perfect!
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