Area of polygons worksheet

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

1 a.

triangle with vertices (5, -7), (5, -9), and (-3, -7).
 
 
1 b.

triangle with vertices (-6, -10), (-6, 7), and (1, -10).
 
 
2 a.

triangle with vertices (0, -6), (0, -5), and (1, -6).
 
 
2 b.

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

Answer Key

1 a. 

The area is 8 square units.

 
1 b. 

The area is 59.5 square units.

 
2 a. 

The area is 0.5 square units.

 
2 b. 

The area is 36 square units.

 


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