Area of polygons worksheet

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

1 a.

trapezoid with vertices (-9, 3), (2, 7), (2, -3), and (-9, -2).
 
 
 
 
1 b.

parallelogram with vertices (-7, 7), (10, 3), (10, -5), and (-7, -1).
 
 
 
 
2 a.

triangle with vertices (6, -7), (6, -2), and (-7, -7).
 
 
 
 
2 b.

trapezoid with vertices (-8, 8), (2, 9), (2, -6), and (-8, -6).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 82.5 square units.

 
1 b. 

The area is 136 square units.

 
2 a. 

The area is 32.5 square units.

 
2 b. 

The area is 145 square units.

 


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