Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

triangle with vertices (-3, 6), (-3, -3), and (-7, 6).
 
 
1 b.

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

triangle with vertices (5, 0), (5, -7), and (-8, 0).
 
 
2 b.

triangle with vertices (7, -5), (7, -8), and (5, -5).
 
 
Page 2

Answer Key

1 a. 

The area is 18 square units.

 
1 b. 

The area is 45.5 square units.

 
2 a. 

The area is 45.5 square units.

 
2 b. 

The area is 3 square units.

 


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