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Mathematics 12 Online
OpenStudy (anonymous):

The figure below shows a partially completed construction of an obtuse isosceles triangle. Points P and L represent two vertices of the triangle. Where should the point for the third vertex lie? between O and L and on the arc between O and L and beyond the arc between O and M and beyond the arc between O and M and on the arc

OpenStudy (anonymous):

OpenStudy (anonymous):

wat u think

OpenStudy (anonymous):

its is the third option between o and m beyond the arc?

OpenStudy (anonymous):

|dw:1346689879070:dw| what an obtuse isoceles looks like

OpenStudy (anonymous):

close but not the answer

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

if its beyond the arc, then it wont be an isosceles triangle, lengths would all be different

OpenStudy (anonymous):

can it be on the arc?

OpenStudy (anonymous):

|dw:1346689996330:dw|

OpenStudy (anonymous):

think about it in terms of radius an isosceles triangle needs to have 2 equal sides assuming p is the center, L is a radius length away from it this means you need another side thats a radius length away from P thus meaning it would be on the arc

OpenStudy (anonymous):

so its between l and p on the arc correct?

OpenStudy (anonymous):

no... side LP is already given as a side of the isosceles triangle...

OpenStudy (anonymous):

sorry i meant o and l

OpenStudy (anonymous):

if its between O and L, then there wouldnt be an obtuse angle and thus no obtuse triangle

OpenStudy (anonymous):

so its the last one O and M on the arc

OpenStudy (anonymous):

yes...

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