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Perimeter - Finding Side Lengths

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Perimeter - Finding Side Lengths Answer Key

1. 
If BC = 15 and ED = 6, which side length can be found?
Composite Shapes 2
  1. AB
  2. CD
  3. FE
  4. AF
 
2. 
If AB = 6 and CD = 4, which side length can be calculated?
Composite Shapes 1
  1. BC
  2. ED
  3. FE
  4. AF
3. 
Perimeter = 36

AB = 8
BC = 10
CD = 6
ED = 5
EF = 2

What is the length of side AF?
Composite Shapes 1
  1. 5
  2. 6
  3. 7
  4. 8
 
4. 
Perimeter = 30

BC = 6
CD = 6
ED = 2
EF = 3
AF = 4

What is the length of AB?
Composite Shapes 2
  1. 6
  2. 7
  3. 8
  4. 9
5. 
The perimeter of regular hexagon ABCDEF is 18. What is the length of DE?
Hexagon ABCDEF
  1. 3
  2. 6
  3. 9
  4. 12
 
6. 
The perimeter of regular heptagon ABCDEFG is 14. What is the length of side FG?
Heptagon ABCDEFG
  1. 1
  2. 2
  3. 6
  4. 7
7. 
Square ABCD has a perimeter of 20. Which of the following could be the length of side FG of rectangle EFGH?
Composite Shapes 7
  1. 4
  2. 5
  3. 15
  4. 20
 
8. 
Given the following side lengths, how much larger is the perimeter of rectangle ABCD then the perimeter of rectangle EFGH?

AB = 7
BC = 5
EF = 3
FG = 2
Composite Shapes 9
  1. 10
  2. 14
  3. 17
  4. 24
9. 
Each unit square has a side length of 1. Which figure has a perimeter of 18?
  1. Unit Squares 3
  2. Unit Squares 9
  3. Unit Squares 11
  4. Unit Squares 10
 
10. 
Each unit square of the figure has a side length of 1. Which figure has the same perimeter as the figure shown?
Unit Squares 4
  1. Unit Squares 2
  2. Unit Squares 1
  3. Unit Squares 11
  4. Unit Squares 5

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