Area / Perimeter Worksheet
1 a. Find the perimeter of the square.

5
 
1 b. Find the missing side length,
when the perimeter is 40.

?
10   
2 a. Find the missing side length,
when the perimeter is 18.

4
 
2 b. Find the missing side length,
when the area is 21 square units.

7
A = 21 square units
3 a. Find the area of the square.

3
 
3 b. Find the area of the rectangle.

6
 
Page 2

Answer Key

1 a.  20

 
1 b.  10

 
2 a.  4

 
2 b.  3

 
3 a.  9 square units

 
3 b.  48 square units

 


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