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gegrgrkj
22.10.2019 •
Mathematics
Can someone me with this two column proofs? -this one is confusing to me
don’t mind the pencil x between a/e for reflexive.
can you finish the reason/ statement proofs for me? you!
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Ответ:
Perpendicular bisectors have a particular property: if AB is a perpendicular bisector of CD, then every point lying on AB has the same distance from C and D.
In your case, we have that every point lying on AC has the same distance from B and D.
So, in particular, we have EB=ED, because E lies on AC.
Moreover, since AC is a perpendicular bisector, it is the height of the triangle (if we choose BD as base), and it bisects BD: this means that the triangle is isosceles, so AD=AB.
This means that triangles ABE and ADE have:
AD=AB because ABD is isoscelesEB=ED because AC is the perpendicular bisector of BDAE in commonSo, their sides are all equal, and thus they are congruent.
Ответ:
dude its b thats easy and yes im sure 4 units down and sense its not reflection then thats the answer