Area of polygons worksheet

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

1 a.

triangle with vertices (8, 10), (8, 9), and (7, 10).
 
 
 
 
1 b.

triangle with vertices (3, 6), (3, 2), and (10, 6).
 
 
 
 
2 a.

triangle with vertices (8, 10), (8, 9), and (1, 10).
 
 
 
 
2 b.

triangle with vertices (4, 8), (4, 0), and (3, 8).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 0.5 square units.

 
1 b. 

The area is 14 square units.

 
2 a. 

The area is 3.5 square units.

 
2 b. 

The area is 4 square units.

 


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