Area of polygons worksheet

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

1 a.

quadrilateral with vertices (-7, 3), (3, 0), (5, -3), and (-6, -7).
 
 
1 b.

quadrilateral with vertices (-4, 5), (4, 5), (0, -10), and (-5, -4).
 
 
2 a.

quadrilateral with vertices (0, 3), (2, 4), (8, 0), and (-1, -8).
 
 
2 b.

triangle with vertices (3, -9), (-1, 2), and (-10, -6).
 
 
Page 2

Answer Key

1 a. 

The area is 69 square units.

 
1 b. 

The area is 85.5 square units.

 
2 a. 

The area is 52.5 square units.

 
2 b. 

The area is 65.5 square units.

 


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