Area of polygons worksheet

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

1 a.

triangle with vertices (0, 10), (0, 0), and (1, 10).
 
 
 
 
1 b.

triangle with vertices (4, 5), (4, 6), and (8, 5).
 
 
 
 
2 a.

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

triangle with vertices (0, 6), (0, 9), and (5, 6).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 5 square units.

 
1 b. 

The area is 2 square units.

 
2 a. 

The area is 1 square units.

 
2 b. 

The area is 7.5 square units.

 


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