Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

triangle with vertices (-28, 15), (-28, -17), and (7, 15).
 
 
1 b.

triangle with vertices (43, 15), (43, -43), and (-28, 15).
 
 
2 a.

trapezoid with vertices (-20, 0), (22, 0), (29, -21), and (-31, -21).
 
 
2 b.

triangle with vertices (4, 41), (4, -38), and (-44, 41).
 
 
Page 2

Answer Key

1 a. 

The area is 560 square units.

 
1 b. 

The area is 2059 square units.

 
2 a. 

The area is 1071 square units.

 
2 b. 

The area is 1896 square units.

 


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