lululu3614 lululu3614
  • 23-11-2018
  • Mathematics
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ABCD is a quadrilateral with AD=BC, AB=40, CD=20, and angle A plus angle B equals 90­°.


What is the area of quadrilateral ABCD?


Hint: Consider how copies of ABCD can be constructed into another shape.

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xxChiefEricxx
xxChiefEricxx xxChiefEricxx
  • 23-11-2018
Is this geometry?? Because if it is then give me a min
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