Area of polygons worksheet

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

1 a.

quadrilateral with vertices (-4, 8), (4, 10), (3, -6), and (-1, -6).
 
 
 
 
1 b.

triangle with vertices (6, 10), (-10, -4), and (-5, 3).
 
 
 
 
2 a.

triangle with vertices (-2, -6), (-4, 6), and (2, -7).
 
 
 
 
2 b.

quadrilateral with vertices (-10, 0), (8, 2), (10, -6), and (-8, -7).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 91 square units.

 
1 b. 

The area is 21 square units.

 
2 a. 

The area is 23 square units.

 
2 b. 

The area is 138 square units.

 


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