Area of polygons worksheet

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

1 a.

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

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

triangle with vertices (3, -1), (3, -6), and (1, -1).
 
 
2 b.

triangle with vertices (4, 5), (4, -5), and (3, 5).
 
 
Page 2

Answer Key

1 a. 

The area is 5.5 square units.

 
1 b. 

The area is 14 square units.

 
2 a. 

The area is 5 square units.

 
2 b. 

The area is 5 square units.

 


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