Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

triangle with vertices (4, 7), (-9, 3), and (-1, 8).
 
 
1 b.

triangle with vertices (-8, -4), (-2, 3), and (6, 6).
 
 
2 a.

triangle with vertices (5, -8), (10, 3), and (3, 4).
 
 
2 b.

triangle with vertices (0, -2), (9, 10), and (-8, 3).
 
 
Page 2

Answer Key

1 a. 

The area is 16.5 square units.

 
1 b. 

The area is 19 square units.

 
2 a. 

The area is 41 square units.

 
2 b. 

The area is 70.5 square units.

 


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