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Determine whether the triangle defined by the points P(-1, 3), Q(2,6) R(5,3) is isosceles, scalene, or equalateral. Show work and round to nearest tenth.

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upandover
Hi there!

I have included a graph of the image below for your reference. 
Let's start by figuring out the distance of all three sides using the distance formula: PR = 6 units, PQ = 4.2, RQ = 4.2. Therefore, because two sides are congruent, the triangle is isosceles.


Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
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