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

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

varsity tutors app store varsity tutors android store

Example Questions

Example Question #101 : Rectangles

What is the area of the rectangle? 

 Screen shot 2015 11 10 at 2.01.29 pm

 

Possible Answers:

\(\displaystyle 72cm^2\)

\(\displaystyle 71cm^2\)

\(\displaystyle 73cm^2\)

\(\displaystyle 74cm^2\)

\(\displaystyle 75cm^2\)

Correct answer:

\(\displaystyle 72cm^2\)

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. 

\(\displaystyle 9\times8=72cm^2\)

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

Example Question #102 : Rectangles

What is the area of the rectangle? 

 Screen shot 2015 11 10 at 2.01.15 pm

 

Possible Answers:

\(\displaystyle 11cm^2\)

\(\displaystyle 7cm^2\)

\(\displaystyle 10cm^2\)

\(\displaystyle 8cm^2\)

\(\displaystyle 9cm^2\)

Correct answer:

\(\displaystyle 9cm^2\)

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. 

\(\displaystyle 9\times1=9cm^2\)

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

Example Question #103 : Rectangles

What is the area of the rectangle? 

Screen shot 2015 11 10 at 2.00.59 pm 

 

Possible Answers:

\(\displaystyle 6cm^2\)

\(\displaystyle 3cm^2\)

\(\displaystyle 7cm^2\)

\(\displaystyle 5cm^2\)

\(\displaystyle 4cm^2\)

Correct answer:

\(\displaystyle 3cm^2\)

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. 

\(\displaystyle 3\times1=3cm^2\)

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

Example Question #1321 : Isee Lower Level (Grades 5 6) Quantitative Reasoning

What is the area of the rectangle? 

 Screen shot 2015 11 10 at 2.00.43 pm

 

Possible Answers:

\(\displaystyle 14cm^2\)

\(\displaystyle 16cm^2\)

\(\displaystyle 17cm^2\)

\(\displaystyle 15cm^2\)

\(\displaystyle 18cm^2\)

Correct answer:

\(\displaystyle 18cm^2\)

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. 

\(\displaystyle 3\times6=18cm^2\)

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

Example Question #332 : How To Find The Area Of A Rectangle

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.58.11 pm 

 

Possible Answers:

\(\displaystyle 72cm^2\)

\(\displaystyle 76cm^2\)

\(\displaystyle 73cm^2\)

\(\displaystyle 74cm^2\)

\(\displaystyle 75cm^2\)

Correct answer:

\(\displaystyle 72cm^2\)

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. 

\(\displaystyle 12\times6=72cm^2\)

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

Example Question #191 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.57.57 pm 

 

Possible Answers:

\(\displaystyle 33cm^2\)

\(\displaystyle 36cm^2\)

\(\displaystyle 34cm^2\)

\(\displaystyle 32cm^2\)

\(\displaystyle 35cm^2\)

Correct answer:

\(\displaystyle 36cm^2\)

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. 

\(\displaystyle 12\times3=36cm^2\)

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

Example Question #191 : Geometric Measurement: Understanding Concepts Of Area And Relating Area To Multiplication And To Addition

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.57.34 pm 

 

Possible Answers:

\(\displaystyle 40cm^2\)

\(\displaystyle 41cm^2\)

\(\displaystyle 42cm^2\)

\(\displaystyle 44cm^2\)

\(\displaystyle 43cm^2\)

Correct answer:

\(\displaystyle 44cm^2\)

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. 

\(\displaystyle 11\times4=44cm^2\)

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

Example Question #101 : Rectangles

What is the area of the rectangle? 

Screen shot 2015 11 10 at 1.56.52 pm 

 

Possible Answers:

\(\displaystyle 23cm^2\)

\(\displaystyle 22cm^2\)

\(\displaystyle 25cm^2\)

\(\displaystyle 21cm^2\)

\(\displaystyle 24cm^2\)

Correct answer:

\(\displaystyle 22cm^2\)

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. 

\(\displaystyle 11\times2=22cm^2\)

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

Example Question #53 : 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 11 10 at 1.56.06 pm 

 

Possible Answers:

\(\displaystyle 51cm^2\)

\(\displaystyle 49cm^2\)

\(\displaystyle 50cm^2\)

\(\displaystyle 52cm^2\)

\(\displaystyle 48cm^2\)

Correct answer:

\(\displaystyle 50cm^2\)

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. 

\(\displaystyle 10\times5=50cm^2\)

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

Example Question #54 : 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 11 10 at 1.55.48 pm

 

Possible Answers:

\(\displaystyle 29cm^2\)

\(\displaystyle 27cm^2\)

\(\displaystyle 28cm^2\)

\(\displaystyle 26cm^2\)

\(\displaystyle 30cm^2\)

Correct answer:

\(\displaystyle 30cm^2\)

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. 

\(\displaystyle 10\times3=30cm^2\)

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

Learning Tools by Varsity Tutors