Area of polygons worksheet

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

1 a.

trapezoid with vertices (-9, 10), (3, 10), (9, -6), and (-3, -6).
 
 
 
 
1 b.

triangle with vertices (-3, -2), (-3, -6), and (5, -2).
 
 
 
 
2 a.

parallelogram with vertices (-1, 7), (10, 4), (10, -10), and (-1, -7).
 
 
 
 
2 b.

parallelogram with vertices (-6, 9), (5, 9), (6, -6), and (-5, -6).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 192 square units.

 
1 b. 

The area is 16 square units.

 
2 a. 

The area is 154 square units.

 
2 b. 

The area is 165 square units.

 


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