Area of polygons worksheet

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

1 a.

trapezoid with vertices (-7, 4), (71, 79), (71, -40), and (-7, -18).
 
 
 
 
1 b.

trapezoid with vertices (-38, 75), (95, 75), (11, -3), and (-59, -3).
 
 
 
 
2 a.

trapezoid with vertices (-97, 89), (18, 89), (10, -32), and (-13, -32).
 
 
 
 
2 b.

triangle with vertices (39, -100), (39, -68), and (19, -100).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 5499 square units.

 
1 b. 

The area is 7917 square units.

 
2 a. 

The area is 8349 square units.

 
2 b. 

The area is 320 square units.

 


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