Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

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

triangle with vertices (-5, -4), (-5, -8), and (6, -4).
 
 
2 a.

trapezoid with vertices (-1, 9), (4, 9), (8, -10), and (-2, -10).
 
 
2 b.

parallelogram with vertices (-3, 4), (7, 8), (7, -4), and (-3, -8).
 
 
Page 2

Answer Key

1 a. 

The area is 11 square units.

 
1 b. 

The area is 22 square units.

 
2 a. 

The area is 142.5 square units.

 
2 b. 

The area is 120 square units.

 


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