Area of polygons worksheet

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

1 a.

quadrilateral with vertices (-4, 2), (7, 10), (9, -8), and (-6, -9).
 
 
 
 
1 b.

quadrilateral with vertices (-10, 8), (10, 3), (2, -2), and (-3, -1).
 
 
 
 
2 a.

triangle with vertices (8, -8), (0, 3), and (-9, 6).
 
 
 
 
2 b.

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

Answer Key

1 a. 

The area is 188.5 square units.

 
1 b. 

The area is 89 square units.

 
2 a. 

The area is 37.5 square units.

 
2 b. 

The area is 31.5 square units.

 


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