Area of polygons worksheet

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

1 a.

triangle with vertices (1, 4), (1, -9), and (-9, 4).
 
 
 
 
1 b.

parallelogram with vertices (-2, 2), (1, 2), (8, -6), and (5, -6).
 
 
 
 
2 a.

parallelogram with vertices (-9, 2), (7, 2), (7, -3), and (-9, -3).
 
 
 
 
2 b.

triangle with vertices (7, -8), (7, 9), and (-6, -8).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 65 square units.

 
1 b. 

The area is 24 square units.

 
2 a. 

The area is 80 square units.

 
2 b. 

The area is 110.5 square units.

 


Copying permission: You are free to copy this worksheet to any number of students for their mathematics work. Do not distribute on websites, books, or any such material without permission. Copyright www.HomeschoolMath.net