Area of polygons worksheet

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

1 a.

trapezoid with vertices (-21, 4), (34, 23), (34, -20), and (-21, -24).
 
 
 
 
1 b.

trapezoid with vertices (-28, 12), (15, 12), (23, -50), and (-33, -50).
 
 
 
 
2 a.

parallelogram with vertices (-18, 4), (12, 4), (19, -49), and (-11, -49).
 
 
 
 
2 b.

triangle with vertices (12, -10), (12, 35), and (-36, -10).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 1952.5 square units.

 
1 b. 

The area is 3069 square units.

 
2 a. 

The area is 1590 square units.

 
2 b. 

The area is 1080 square units.

 


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