Answer:
I think it's A AND C. The diameter is just the radius multiplied by 2 at the end of the day.B is just wrong.
The thing that is true about -5 and 5 is the answer is zero.
Answer is option b)38.5 sq.units
Given vertices are A(-4,2) ,B(3,2),C(3,-5) and D(-4,-2)
Area of polygon is defined in the image.
If you have any doubts see the image or ask in comments box.
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