Solve for X: Rectangle Area 30 with Side Length 2X and Height 3

The area of the rectangle below is equal to 30.

AC = 3

AB = 2X

Calculate X.

333AAABBBDDDCCC2X30

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1

Understand the problem

The area of the rectangle below is equal to 30.

AC = 3

AB = 2X

Calculate X.

333AAABBBDDDCCC2X30

2

Step-by-step solution

The area of the rectangle is equal to its length multiplied by its width.

We begin by inserting the given data into this formula:

30=3×2x 30=3\times2x

30=6x 30=6x

Lastly we divide both sides by 6:

x=5 x=5

3

Final Answer

5

Practice Quiz

Test your knowledge with interactive questions

Look at the rectangle ABCD below.

Side AB is 6 cm long and side BC is 4 cm long.

What is the area of the rectangle?
666444AAABBBCCCDDD

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