Area of polygons worksheet

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

1 a.

triangle with vertices (1, 38), (1, -3), and (-22, 38).
 
 
1 b.

parallelogram with vertices (-1, 39), (19, 39), (23, 0), and (3, 0).
 
 
2 a.

triangle with vertices (-36, 33), (-36, 38), and (3, 33).
 
 
2 b.

parallelogram with vertices (-34, 34), (23, 11), (23, -35), and (-34, -12).
 
 
Page 2

Answer Key

1 a. 

The area is 471.5 square units.

 
1 b. 

The area is 780 square units.

 
2 a. 

The area is 97.5 square units.

 
2 b. 

The area is 2622 square units.

 


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