Area of polygons worksheet

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

1 a.

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

quadrilateral with vertices (-6, 9), (10, 7), (1, -10), and (-9, -6).
 
 
 
 
2 a.

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

triangle with vertices (-2, 5), (3, -6), and (7, 2).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 23.5 square units.

 
1 b. 

The area is 226 square units.

 
2 a. 

The area is 185 square units.

 
2 b. 

The area is 42 square units.

 


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