Area of polygons worksheet

Find the area of the shapes when their vertices are given.

1 a.

trapezoid with vertices (-22, 40), (39, 40), (26, -24), and (-18, -24).
 
 
 
 
1 b.

triangle with vertices (33, -45), (33, 43), and (44, -45).
 
 
 
 
2 a.

triangle with vertices (-31, 31), (-31, -14), and (22, 31).
 
 
 
 
2 b.

trapezoid with vertices (-19, 40), (47, 40), (35, -37), and (-49, -37).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 3360 square units.

 
1 b. 

The area is 484 square units.

 
2 a. 

The area is 1192.5 square units.

 
2 b. 

The area is 5775 square units.

 


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