The floor of a shed has an area of 104 square feet. The floor is in the shape of a rectangle whose length is 3 feet less than twice the width. We need to find the length and the width of the floor of the shed.
2025/3/25
1. Problem Description
The floor of a shed has an area of 104 square feet. The floor is in the shape of a rectangle whose length is 3 feet less than twice the width. We need to find the length and the width of the floor of the shed.
2. Solution Steps
Let be the width of the floor of the shed.
Let be the length of the floor of the shed.
The length is 3 feet less than twice the width, so we can write
.
The area of the rectangular floor is given by
Area = length * width, so .
We are given that the area is 104 square feet, so .
Substituting into the area equation, we get
.
Expanding the equation gives
.
Rearranging the equation into a quadratic form, we have
.
We can solve this quadratic equation for using the quadratic formula:
, where , , and .
We have two possible solutions for :
Since the width cannot be negative, we have .
Now we can find the length using :
.
So the width is 8 feet and the length is 13 feet.
We can check our answer: , which is the given area.
3. Final Answer
The width of the floor of the shed is 8 ft.
The length of the floor of the shed is 13 ft.