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28 Oct 2006, 09:28
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All,
Any one knows how to calculate the length of an arc in a circle - All the info we are given are that the tranversal between the chord and the parallel diameter intersects the diameter at angle of 35 degrees and the diameter is 18? This was a question from GMATPrep I was stumped on. Appreciate the help !!
Thanks
J
Any one knows how to calculate the length of an arc in a circle - All the info we are given are that the tranversal between the chord and the parallel diameter intersects the diameter at angle of 35 degrees and the diameter is 18? This was a question from GMATPrep I was stumped on. Appreciate the help !!
Thanks
J
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28 Oct 2006, 10:51
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You should give more details
in general the length is 2*pi*r*x/360, where x is the angle corresponding to the arc length within the circuference. A circureference is an arc of 360 degrees...
in general the length is 2*pi*r*x/360, where x is the angle corresponding to the arc length within the circuference. A circureference is an arc of 360 degrees...
28 Oct 2006, 13:43
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I think I have seen a question like this one before.
Official Guide 11th Edition, PS Question 206, Pg 180.
The trick is that Minor arcs have twice the measure of their inscribed angles. So in other words, if the angle is 35 then the minor arc will be 70.
I think that should help you out.
Would love to explain in more detail but honestly you need to have the figure in front of you.
Official Guide 11th Edition, PS Question 206, Pg 180.
The trick is that Minor arcs have twice the measure of their inscribed angles. So in other words, if the angle is 35 then the minor arc will be 70.
I think that should help you out.
Would love to explain in more detail but honestly you need to have the figure in front of you.
