Area of polygons worksheet

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

1 a.

trapezoid with vertices (1, 9), (7, 9), (6, 2), and (3, 2).
 
 
 
 
1 b.

parallelogram with vertices (2, 5), (10, 5), (8, 2), and (0, 2).
 
 
 
 
2 a.

triangle with vertices (7, 2), (7, 0), and (4, 2).
 
 
 
 
2 b.

triangle with vertices (8, 10), (8, 9), and (3, 10).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 31.5 square units.

 
1 b. 

The area is 24 square units.

 
2 a. 

The area is 3 square units.

 
2 b. 

The area is 2.5 square units.

 


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