Area of polygons worksheet

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

1 a.

triangle with vertices (5, 1), (5, 7), and (6, 1).
 
 
 
 
1 b.

parallelogram with vertices (3, 8), (10, 9), (10, 4), and (3, 3).
 
 
 
 
2 a.

triangle with vertices (6, 1), (6, 10), and (4, 1).
 
 
 
 
2 b.

trapezoid with vertices (3, 8), (8, 10), (8, 3), and (3, 3).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 3 square units.

 
1 b. 

The area is 35 square units.

 
2 a. 

The area is 9 square units.

 
2 b. 

The area is 30 square units.

 


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