A flat rectangular piece of aluminum has a perimeter of 70 inches. The length is 11 inches longer than the width. Find the width
2 answers:
Answer:
The answer is the option D
Step-by-step explanation:
we know that
The perimeter of a rectangle is equal to
where
L is the length side of the rectangle
W is the width side of the rectangle
In this problem we have
so
------> equation A
------> equation B
Substitute equation B in equation A and solve for W
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The area of the triangle is given by the following formula:
Where "b" is the base and "h" is its height. Replacing the values:
The total area is the sum of both areas:
replacing the areas:
Answer:
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Step-by-step explanation:
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