Area of polygons worksheet

Find the area of the shapes when their vertices are given.

1 a.

trapezoid with vertices (-90, 21), (31, 20), (31, -58), and (-90, -93).
 
 
 
 
1 b.

trapezoid with vertices (-56, 7), (63, 13), (63, -21), and (-56, -11).
 
 
 
 
2 a.

trapezoid with vertices (-85, 19), (26, 96), (26, -100), and (-85, -35).
 
 
 
 
2 b.

triangle with vertices (-9, 89), (-9, 14), and (-30, 89).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 11616 square units.

 
1 b. 

The area is 3094 square units.

 
2 a. 

The area is 13875 square units.

 
2 b. 

The area is 787.5 square units.

 


Copying permission: You are free to copy this worksheet to any number of students for their mathematics work. Do not distribute on websites, books, or any such material without permission. Copyright www.HomeschoolMath.net