Post by pgeod pgeod goodnight, A paralllogramme. You can also use the rciproque of Thals: superjet

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Post by miley (invited) Hi here I have a duty to house demin and I do not arrve arpondre has a question, if you help me ... ouviez ABCD is a rectangle and M any point plane. I, J, K and L are the midpoints of the segments rspctifs [MA] [MB] [MC] and [MD]. 1) Make 2) What is the nature of the quadrilateral IJKL? (And I can not have the dmontrer I do not know what to use and how ps) 3) Compare the perimeter of ABCD IJKL. Same question for their areas. That thank you in advance!
Post by Mumu87 (invited) This is a rectangle, superjet 100 sukhoi you take, for example to start the triangles ABM, medium Let I [AM], J medium [BM] On tho after the mileux [ IJ] is parralèle a [AB], but scabies half [AB] And so on you take the triangles ACM, BDM, CDM With the same reasoning ... I think primetre and Children are divided by two
Post by pgeod pgeod goodnight, A paralllogramme. You can also use the rciproque of Thals: superjet 100 sukhoi M, I, A, and M, J, B, points lined up in this order with MI / MA = MJ / MB = 1/2, then (IJ) / / (AB) and IJ / AB = 1/2. ...
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