Area of polygons worksheet

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

1 a.

triangle with vertices (2, 8), (2, 4), and (7, 8).
 
 
 
 
1 b.

triangle with vertices (9, 10), (9, 7), and (5, 10).
 
 
 
 
2 a.

triangle with vertices (2, 0), (2, 4), and (0, 0).
 
 
 
 
2 b.

triangle with vertices (6, 5), (6, 2), and (8, 5).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 10 square units.

 
1 b. 

The area is 6 square units.

 
2 a. 

The area is 4 square units.

 
2 b. 

The area is 3 square units.

 


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