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gayathri
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DS: Geometry 14 Dec 2004, 08:12
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vprabhala
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DS: Geometry 14 Dec 2004, 08:22
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i think one of the properties states that if it makes a right angled triangle then it woul dbe semi circle ..(that half of it ) which would make AC is the diameter..

answer A? not too sure though..
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ian7777
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DS: Geometry 14 Dec 2004, 10:21
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agree with A. when a right triangle is inscribed in a circle, the hypotenuse is the diameter.
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nocilis
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DS: Geometry 14 Dec 2004, 11:30
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1) Angle of a triangle inscribed in a semicircle is 90. Here, the angle is 90, so it is a semi circle (corollary) => AC is a diameter

Ok

2) AB/BC = 3/4. Perhaps they are baiting that we might assume AB:BC:AC = 3:4:5 and therefore conclude angle ABC is 90*. But that is not the case. It does not say BC:AC is 4:5.
Can't get more information from this statement


A it is
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gayathri
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DS: Geometry 14 Dec 2004, 16:01
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OA is A.

Good explanation nocilis.



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