Area of polygons worksheet

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

1 a.

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

quadrilateral with vertices (-2, 7), (9, 8), (2, -1), and (-2, -7).
 
 
 
 
2 a.

triangle with vertices (3, -9), (-10, 8), and (4, -3).
 
 
 
 
2 b.

triangle with vertices (0, -2), (-7, 1), and (-10, -6).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 252 square units.

 
1 b. 

The area is 74 square units.

 
2 a. 

The area is 47.5 square units.

 
2 b. 

The area is 29 square units.

 


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