Basic Geometry : How to find the area of a rectangle

Study concepts, example questions & explanations for Basic Geometry

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Example Questions

Example Question #653 : Plane Geometry

The length of the long side of a rectangle is 14. The short side is half the length of the long side. What is the area of the rectangle? 

Possible Answers:

 

 

 

 

Correct answer:

Explanation:

The area of any rectangle is 

One side is 14, and the other side is half of the given side. Half of 14 is 7, so now we have our length and width.

 

Example Question #101 : How To Find The Area Of A Rectangle

Find the area of a rectangle with  and .

Possible Answers:

Correct answer:

Explanation:

The formula for area is 

.

Plugging in the numbers,

.

Example Question #102 : How To Find The Area Of A Rectangle

If the length of a rectangle is 40 feet and the width is 22 feet what is the area?

Possible Answers:

Correct answer:

Explanation:

First we need to know that the formula for area of a rectangle is length times width. So since we know both length and width we can plug them into our equation 

.

40 times 22 equals 880 and since we are multiplying two sides, both measured in feet, our answer is in square feet.

Our final answer is 

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