Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

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

triangle with vertices (-4, 9), (-4, 5), and (2, 9).
 
 
2 a.

triangle with vertices (3, 4), (3, -10), and (6, 4).
 
 
2 b.

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

Answer Key

1 a. 

The area is 2 square units.

 
1 b. 

The area is 12 square units.

 
2 a. 

The area is 21 square units.

 
2 b. 

The area is 3 square units.

 


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