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
Solution:
Length
Explanation of Solution
Given:
Length is twice the width of the rectangular floor.
Perimeter
Calculation:
Let the width of the rectangular floor be
Then the length of the floor is 2x feet.
Perimeter of the floor
We know that in a rectangle,
Perimeter
Thus we get,
Therefore the width of the rectangular floor is 15 feet.
Then the length of the rectangular floor becomes =
Hence the dimensions, that is, the length and width of the rectangular floor are 30 feet and 15 feet respectively.
Chapter 11 Solutions
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