In a rectangular axis system, what is the area of a parallelogram with the coordinates: (5,7), (12,7), (2,3), (9,3) ? Options.
A) 21  B) 28.  C) 35.  D) 49.  E) 52.
Area of parallelogram = b*h.   Base = Distance in x coordinates between (2,3) and (9,3) = 7   Height = Difference in y coordinates between (5,7) and (2,3) = 3.   Area = 7*3= 
<gadget id="calculator">7*3</gadget>
<output>21</output>
21.   21NSWER:21
<result>A</result>
In a rectangular axis system, what is the area of a parallelogram with the coordinates: (5,7), (12,7), (2,3), (9,3) ?