Area of polygons worksheet

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

1 a.

quadrilateral with vertices (2, 9), (8, 9), (6, 3), and (4, 0).
 
 
 
 
1 b.

triangle with vertices (3, 10), (10, 4), and (10, 3).
 
 
 
 
2 a.

triangle with vertices (8, 5), (10, 9), and (1, 4).
 
 
 
 
2 b.

triangle with vertices (7, 1), (3, 10), and (5, 1).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 30 square units.

 
1 b. 

The area is 3.5 square units.

 
2 a. 

The area is 13 square units.

 
2 b. 

The area is 9 square units.

 


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