Area of polygons worksheet

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

1 a.

triangle with vertices (-21, -48), (-21, -39), and (20, -48).
 
 
 
 
1 b.

parallelogram with vertices (-7, 37), (40, 35), (40, -8), and (-7, -6).
 
 
 
 
2 a.

trapezoid with vertices (-24, 50), (10, 50), (31, -11), and (-5, -11).
 
 
 
 
2 b.

parallelogram with vertices (-9, 27), (1, 27), (-4, -47), and (-14, -47).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 184.5 square units.

 
1 b. 

The area is 2021 square units.

 
2 a. 

The area is 2135 square units.

 
2 b. 

The area is 740 square units.

 


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