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QueenNerdy889
23.10.2019 •
Mathematics
Arectangle has a perimeter of 28cm and a length of 8cm. what is the width in cm
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Ответ:
Step-by-step explanation:
The area of a rectangle can be calculated with this formula:
Where "l" is the length and "w" is the width.
You can identify from the figure that the length and the width of this rectangle are:
Then, you need to substitute this lenght and this width into
:
Now, apply Distributive property:
Finally, you need to add the like terms. Then, you get: