Area of polygons worksheet

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

1 a.

quadrilateral with vertices (-9, 4), (5, 9), (10, -2), and (-9, -3).
 
 
 
 
1 b.

triangle with vertices (5, -10), (-9, 2), and (1, 9).
 
 
 
 
2 a.

quadrilateral with vertices (-2, 7), (4, 8), (0, -4), and (-2, -6).
 
 
 
 
2 b.

quadrilateral with vertices (-8, 1), (7, 0), (4, -10), and (-7, -10).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 156 square units.

 
1 b. 

The area is 109 square units.

 
2 a. 

The area is 47 square units.

 
2 b. 

The area is 137 square units.

 


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