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Area of composite shapes


There is exactly 1 pair of parallel sides in the following shape.
A quadrilateral with 1 pair of parallel sides. The left base is 10 units. The right base is 7 units. The height is 8 units. There is a dashed line that is perpendicular to the base. There is an arrow on the side that begins at the bottom, left vertex and ends at the top, left vertex.
What is the area of the shape?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi