aceofhearts7
aceofhearts7 aceofhearts7
  • 03-11-2021
  • Mathematics
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*urgent* Need Determine whether this quadrilateral must be a parallelogram

urgent Need Determine whether this quadrilateral must be a parallelogram class=

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0Aizen0
0Aizen0 0Aizen0
  • 03-11-2021

Isn't that a parallelogram?

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mkrooska
mkrooska mkrooska
  • 03-11-2021
It must be a parallelogram because both sets of opposite angles are congruent and the sum of all angles equal 360°, meaning that both sets of opposite sides are parallel.
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