To find: The dimensions of a rectangular floor if the length is twice the width and the perimeter of the floor is 90 feet.
Answer to Problem 55AYU
.
Explanation of Solution
Given:
Length is twice the width of the rectangular floor.
.
Calculation:
Let the width of the rectangular floor be feet.
Then the length of the floor is feet.
Perimeter of the floor .
We know that in a rectangle,
Thus we get,
Therefore the width of the rectangular floor is 15 feet.
Then the length of the rectangular floor becomes feet.
Hence the dimensions, that is, the length and width of the rectangular floor are 30 feet and 15 feet respectively.
Chapter 11 Solutions
Precalculus
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