the perimeter of a circular sector, whose angle is 1.5 radians, is 14 inches. find the angle of the sector.
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OpenStudy (anonymous):
4 inches.
OpenStudy (aaronandyson):
It's perimeter.
Should be
double radius + arc length = 14 inches
2r + 1.5r = 14 inches
3.5r = 14 inches
r = 4 inches.
@heavenfun13 no direct ans against the CoC
OpenStudy (anonymous):
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OpenStudy (aaronandyson):
i posted it above
OpenStudy (anonymous):
@heavenfun13 @AaronAndyson but my teacher said that 1.5 is the central angle.. is that correct?
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OpenStudy (aaronandyson):
same i think
OpenStudy (aaronandyson):
more q's?
OpenStudy (thomas5267):
Isn't that 1.5 radian? It is given in the question.
OpenStudy (anonymous):
@AaronAndyson im really confused about the 1.5 rad.. sorry, is that the arc or the angle?
OpenStudy (aaronandyson):
equivalent to the angle subtended at the centre of a circle by an arc equal in length to the radius.
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