Area of polygons worksheet

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

1 a.

triangle with vertices (9, 5), (9, 6), and (10, 5).
 
 
 
 
1 b.

triangle with vertices (9, 4), (9, 8), and (0, 4).
 
 
 
 
2 a.

parallelogram with vertices (0, 6), (9, 8), (9, 5), and (0, 3).
 
 
 
 
2 b.

trapezoid with vertices (0, 8), (9, 10), (9, 4), and (0, 0).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 0.5 square units.

 
1 b. 

The area is 18 square units.

 
2 a. 

The area is 27 square units.

 
2 b. 

The area is 63 square units.

 


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