Common Core: 4th Grade Math : Solving for Perimeter

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #131 : Apply Area And Perimeter Formulas For Rectangles: Ccss.Math.Content.4.Md.A.3

Angela has a garden that she wants to put a fence around. How much fencing will she need if her garden is \displaystyle 4ft by \displaystyle 2ft?

 

Possible Answers:

\displaystyle 12ft

\displaystyle 14ft

\displaystyle 13ft

\displaystyle 11ft

\displaystyle 10ft

Correct answer:

\displaystyle 12ft

Explanation:

The fence is going around the garden, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(4)+2(2)

\displaystyle P=8+4

\displaystyle P=12

Example Question #132 : Apply Area And Perimeter Formulas For Rectangles: Ccss.Math.Content.4.Md.A.3

Angela has a garden that she wants to put a fence around. How much fencing will she need if her garden is \displaystyle 9ft by \displaystyle 9ft?

 

Possible Answers:

\displaystyle 34ft

\displaystyle 32ft

\displaystyle 33ft

\displaystyle 36ft

\displaystyle 35ft

Correct answer:

\displaystyle 36ft

Explanation:

The fence is going around the garden, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(9)+2(9)

\displaystyle P=18+18

\displaystyle P=36

Example Question #133 : Apply Area And Perimeter Formulas For Rectangles: Ccss.Math.Content.4.Md.A.3

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 10ft by \displaystyle 2ft?

 

Possible Answers:

\displaystyle 28ft

\displaystyle 25ft

\displaystyle 26ft

\displaystyle 24ft

\displaystyle 27ft

Correct answer:

\displaystyle 24ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(10)+2(2)

\displaystyle P=20+4

\displaystyle P=24

Example Question #151 : How To Find The Perimeter Of A Rectangle

David wants to put a fence around a garden in his backyard. How much fencing will he need if his garden is \displaystyle 5ft by \displaystyle 4ft?

Possible Answers:

\displaystyle 20ft

\displaystyle 17ft

\displaystyle 16ft

\displaystyle 18ft

\displaystyle 9ft

Correct answer:

\displaystyle 18ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(5)+2(4)

\displaystyle P=10+8

\displaystyle P=18

Example Question #1181 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 5ft by \displaystyle 3ft?

 

Possible Answers:

\displaystyle 17ft

\displaystyle 14ft

\displaystyle 16ft

\displaystyle 15ft

\displaystyle 18ft

Correct answer:

\displaystyle 16ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(5)+2(3)

\displaystyle P=10+6

\displaystyle P=16

Example Question #1182 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 8ft by \displaystyle 4ft?

 

Possible Answers:

\displaystyle 25ft

\displaystyle 24ft

\displaystyle 23ft

\displaystyle 21ft

\displaystyle 22ft

Correct answer:

\displaystyle 24ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(8)+2(4)

\displaystyle P=16+8

\displaystyle P=24

Example Question #136 : Apply Area And Perimeter Formulas For Rectangles: Ccss.Math.Content.4.Md.A.3

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 9ft by \displaystyle 2ft?

 

Possible Answers:

\displaystyle 20ft

\displaystyle 21ft

\displaystyle 19ft

\displaystyle 18ft

\displaystyle 22ft

Correct answer:

\displaystyle 22ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(9)+2(2)

\displaystyle P=18+4

\displaystyle P=22

Example Question #491 : Isee Middle Level (Grades 7 8) Quantitative Reasoning

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 10ft by \displaystyle 5ft?

 

Possible Answers:

\displaystyle 26ft

\displaystyle 29ft

\displaystyle 30ft

\displaystyle 27ft

\displaystyle 28ft

Correct answer:

\displaystyle 30ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(10)+2(5)

\displaystyle P=20+10

\displaystyle P=30

Example Question #1184 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 8ft by \displaystyle 8ft?

 

Possible Answers:

\displaystyle 37ft

\displaystyle 34ft

\displaystyle 36ft

\displaystyle 32ft

\displaystyle 33ft

Correct answer:

\displaystyle 32ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(8)+2(8)

\displaystyle P=16+16

\displaystyle P=32

Example Question #573 : Quadrilaterals

David wants to put a fence around his backyard. How much fencing will he need if his backyard is \displaystyle 9ft by \displaystyle 4ft?

 

Possible Answers:

\displaystyle 27ft

\displaystyle 28ft

\displaystyle 25ft

\displaystyle 26ft

\displaystyle 29ft

Correct answer:

\displaystyle 26ft

Explanation:

The fence is going around the backyard, so this is a perimeter problem. 

\displaystyle P=2l+2w

\displaystyle P=2(9)+2(4)

\displaystyle P=18+8

\displaystyle P=26

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