ISEE Lower Level Quantitative : How to find the area of a rectangle

Study concepts, example questions & explanations for ISEE Lower Level Quantitative

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Example Questions

Example Question #1 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 


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Possible Answers:

\(\displaystyle 64in^2\)

\(\displaystyle 62in^2\)

\(\displaystyle 66in^2\)

\(\displaystyle 68in^2\)

\(\displaystyle 69in^2\)

Correct answer:

\(\displaystyle 66in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 11\times6=66in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #2 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 


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Possible Answers:

\(\displaystyle 54in^2\)

\(\displaystyle 57in^2\)

\(\displaystyle 56in^2\)

\(\displaystyle 55in^2\)

\(\displaystyle 58in^2\)

Correct answer:

\(\displaystyle 54in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 9\times6=54in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #7 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 

Screen shot 2015 09 29 at 8.27.30 am

Possible Answers:

\(\displaystyle 36in^2\)

\(\displaystyle 35in^2\)

\(\displaystyle 34in^2\)

\(\displaystyle 33in^2\)

\(\displaystyle 32in^2\)

Correct answer:

\(\displaystyle 36in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 9\times4=36in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #8 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 

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Possible Answers:

\(\displaystyle 48in^2\)

\(\displaystyle 46in^2\)

\(\displaystyle 50in^2\)

\(\displaystyle 44in^2\)

\(\displaystyle 42in^2\)

Correct answer:

\(\displaystyle 48in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 12\times4=48in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #9 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 

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Possible Answers:

\(\displaystyle 97in^2\)

\(\displaystyle 99in^2\)

\(\displaystyle 96in^2\)

\(\displaystyle 95in^2\)

\(\displaystyle 98in^2\)

Correct answer:

\(\displaystyle 96in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 12\times8=96in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #10 : Solve Real World And Mathematical Problems Involving Area: Ccss.Math.Content.3.Md.C.7b

What is the area of the rectangle? 


Screen shot 2015 09 29 at 8.16.34 am

Possible Answers:

\(\displaystyle 82in^2\)

\(\displaystyle 88in^2\)

\(\displaystyle 80in^2\)

\(\displaystyle 86in^2\)

\(\displaystyle 78in^2\)

Correct answer:

\(\displaystyle 80in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 10\times8=80in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #61 : How To Find The Area Of A Rectangle

What is the area of the rectangle? 

Screen shot 2015 09 29 at 8.15.51 am

Possible Answers:

\(\displaystyle 28in^2\)

\(\displaystyle 22in^2\)

\(\displaystyle 30in^2\)

\(\displaystyle 24in^2\)

\(\displaystyle 20in^2\)

Correct answer:

\(\displaystyle 20in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 10\times2=20in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #62 : How To Find The Area Of A Rectangle

What is the area of the rectangle? 

Screen shot 2015 09 29 at 8.15.23 am

Possible Answers:

\(\displaystyle 6in^2\)

\(\displaystyle 5in^2\)

\(\displaystyle 9in^2\)

\(\displaystyle 7in^2\)

\(\displaystyle 8in^2\)

Correct answer:

\(\displaystyle 6in^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 3\times2=6in^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #63 : How To Find The Area Of A Rectangle

Emily is digging a garden in her backyard that is \(\displaystyle 7\) meters long and \(\displaystyle 4\) meters wide. What is the area of her garden? 

Possible Answers:

\(\displaystyle 28m^2\)

\(\displaystyle 24m^2\)

\(\displaystyle 32m^2\)

\(\displaystyle 16m^2\)

\(\displaystyle 20m^2\)

Correct answer:

\(\displaystyle 28m^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 7\times4=28m^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

Example Question #64 : How To Find The Area Of A Rectangle

Tim is going to retile his bathroom floor. His bathroom is \(\displaystyle 4\) meters long and \(\displaystyle 3\) meters wide. What is the area that he will retile? 

Possible Answers:

\(\displaystyle 13m^2\)

\(\displaystyle 15m^2\)

\(\displaystyle 12m^2\)

\(\displaystyle 16m^2\)

\(\displaystyle 14m^2\)

Correct answer:

\(\displaystyle 12m^2\)

Explanation:

The formula to find area is \(\displaystyle A=l\times w\). We are given the length and the width from the problem, so we can plug those values into our equation and solve. 

\(\displaystyle 4\times3=12m^2\)

*Area is the number of square units inside a shape, which is why area is always written with square units. 

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