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Given ABCD as marked, what additional information would help you to prove that ABCD is a square? Pls I rlly need help

Given ABCD As Marked What Additional Information Would Help You To Prove That ABCD Is A Square Pls I Rlly Need Help class=

Sagot :

9514 1404 393

Answer:

  a.  AC ≅ BD

Step-by-step explanation:

All four sides are marked as being the same length. This means the figure is a parallelogram and a rhombus.

Diagonals bisect each other in any parallelogram. They are perpendicular, and bisect the corner angles, in any rhombus. Choices b, c, and d add no new information.

In order to show the figure is a square, you must show this rhombus is a rectangle: the diagonals must be the same length. That is you must show ...

  AC ≅ BD

_____

Additional comment

You may be given problems with coordinates, and asked to show the figure is a parallelogram, rectangle, rhombus, or square. Often, the problem is given with the intent that you use slope and length formulas on the given points to prove opposite sides are parallel and the same length. IMO, these problems are much simpler if you show the appropriate relation exists between the midpoints, slopes, and lengths of the diagonals.