Area of polygons worksheet

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

1 a.

triangle with vertices (61, -38), (61, -39), and (-78, -38).
 
 
 
 
1 b.

parallelogram with vertices (-14, 56), (20, 72), (20, -84), and (-14, -100).
 
 
 
 
2 a.

parallelogram with vertices (-62, 60), (51, 60), (58, -11), and (-55, -11).
 
 
 
 
2 b.

parallelogram with vertices (-70, 28), (38, 28), (34, -100), and (-74, -100).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 69.5 square units.

 
1 b. 

The area is 5304 square units.

 
2 a. 

The area is 8023 square units.

 
2 b. 

The area is 13824 square units.

 


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