Area of polygons worksheet

Findtheareaoftheshapeswhentheirverticesaregiven.

1 a.

parallelogram with vertices (-81, 86), (68, 36), (68, -56), and (-81, -6).
 
 
1 b.

triangle with vertices (-20, -77), (-20, -74), and (-5, -77).
 
 
2 a.

triangle with vertices (-12, 21), (-12, -50), and (27, 21).
 
 
2 b.

parallelogram with vertices (-42, 23), (55, 23), (85, -77), and (-12, -77).
 
 
Page 2

Answer Key

1 a. 

The area is 13708 square units.

 
1 b. 

The area is 22.5 square units.

 
2 a. 

The area is 1384.5 square units.

 
2 b. 

The area is 9700 square units.

 


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