Area of polygons worksheet

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

1 a.

triangle with vertices (-28, 35), (-28, -29), and (28, 35).
 
 
1 b.

parallelogram with vertices (-21, 44), (49, 44), (28, -1), and (-42, -1).
 
 
2 a.

parallelogram with vertices (-2, 11), (40, 11), (15, -37), and (-27, -37).
 
 
2 b.

triangle with vertices (1, -5), (1, 25), and (14, -5).
 
 
Page 2

Answer Key

1 a. 

The area is 1792 square units.

 
1 b. 

The area is 3150 square units.

 
2 a. 

The area is 2016 square units.

 
2 b. 

The area is 195 square units.

 


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