Area of polygons worksheet

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

1 a.

parallelogram with vertices (-83, 35), (31, 97), (31, 28), and (-83, -34).
 
 
 
 
1 b.

parallelogram with vertices (-77, 98), (50, 87), (50, -48), and (-77, -37).
 
 
 
 
2 a.

triangle with vertices (-74, -12), (-74, 22), and (28, -12).
 
 
 
 
2 b.

triangle with vertices (-86, 3), (-86, -51), and (-69, 3).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 7866 square units.

 
1 b. 

The area is 17145 square units.

 
2 a. 

The area is 1734 square units.

 
2 b. 

The area is 459 square units.

 


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