Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

triangle with vertices (8, -5), (3, -8), and (2, 7).
 
 
1 b.

triangle with vertices (2, -10), (-9, 1), and (-4, 4).
 
 
2 a.

quadrilateral with vertices (0, 3), (1, 4), (1, -10), and (-1, -9).
 
 
2 b.

triangle with vertices (10, 10), (2, 5), and (4, 4).
 
 
Page 2

Answer Key

1 a. 

The area is 39 square units.

 
1 b. 

The area is 44 square units.

 
2 a. 

The area is 19.5 square units.

 
2 b. 

The area is 9 square units.

 


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