Determine whether parallelogram JKLM with vertices J(-1, -1), K(4, 4), L(9, -1) and M(4, -6) is a rhombus, square, rectangle or all three.

Question

anonymous · Answer

You part of keystone?

jdoe0001 · Answer

what do you think?

kira_yamato · Answer

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$$AB = \sqrt{\left( x _{B} - x_{A} \right)^2 + \left( y _{B} - y_{A} \right)^2}$$
Use this formula to find JK and KL, and determine if they are of the same length

anonymous · Answer

I ended up with JK = 5√2
Still working on KL

anonymous · Answer

They're equal

anonymous · Answer

It's all three, check your message box for why.

kira_yamato · Answer

attachment

kira_yamato · Answer

Sorry it should be JK vector dot LK vector, but you'll get the same answer anyway