Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

triangle with vertices (-4, 9), (8, -8), and (-1, 6).
 
 
1 b.

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

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

triangle with vertices (-5, -2), (9, 7), and (10, -3).
 
 
Page 2

Answer Key

1 a. 

The area is 7.5 square units.

 
1 b. 

The area is 103.5 square units.

 
2 a. 

The area is 5 square units.

 
2 b. 

The area is 74.5 square units.

 


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