Area of polygons worksheet

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

1 a.

trapezoid with vertices (-22, 39), (35, 30), (35, -13), and (-22, -37).
 
 
 
 
1 b.

triangle with vertices (-8, -27), (-8, -46), and (46, -27).
 
 
 
 
2 a.

triangle with vertices (10, 26), (10, 27), and (-3, 26).
 
 
 
 
2 b.

trapezoid with vertices (-21, 25), (33, 25), (42, -34), and (-10, -34).
 
 
 
 
Page 2

Answer Key

1 a. 

The area is 3391.5 square units.

 
1 b. 

The area is 513 square units.

 
2 a. 

The area is 6.5 square units.

 
2 b. 

The area is 3127 square units.

 


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