Area of polygons worksheet

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

1 a.

triangle with vertices (-14, 36), (-14, 34), and (-39, 36).
 
 
 
 
1 b.

trapezoid with vertices (-20, 9), (19, 9), (13, -33), and (-22, -33).
 
 
 
 
2 a.

trapezoid with vertices (-10, 17), (12, 17), (7, -47), and (-10, -47).
 
 
 
 
2 b.

trapezoid with vertices (-22, 29), (12, 29), (46, -5), and (-42, -5).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 25 square units.

 
1 b. 

The area is 1554 square units.

 
2 a. 

The area is 1248 square units.

 
2 b. 

The area is 2074 square units.

 


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