1.Remember the problem about midpoint quadrilateral? Open the Geogebra file and play with your figure. Create a theorem in which you describe the midpoint quadrilateral in as much detail as possible. Refer to our discussion of what proofs areas your guide to supply the proof for your midpoint quadrilateral claim. If you can't offer a justification for a specific claim, you may write "If we knew x, then we could say y". Discuss what presented a challenge in writing this proof.