SOLUTION: The length of a rectangular floor is two metres more than twice its width. If a diagonal of the rectangle is 13 meters, find the area of the floor.

Algebra.Com
Question 1186397: The length of a rectangular floor is two metres more than twice its width. If a diagonal of the rectangle is 13 meters, find the area of the floor.
Found 2 solutions by josgarithmetic, Alan3354:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
, length and width and diagonal form a right triangle, longest side being the diagonal, so using Pythagorean Theorem.





discrimin,


.
.
.
60 square meters

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
The length of a rectangular floor is two metres more than twice its width. If a diagonal of the rectangle is 13 meters, find the area of the floor.
----------------------
It's the 5, 12, 13 right triangle.
Almost as popular as the 3, 4, 5.
----
Area = b*h/2 = 60 sq meters.

RELATED QUESTIONS

The length of a rectangular floor is 3 meters less than three times its width. If a... (answered by graphmatics)
The length of a rectangle floor is 8 meter less than twice its width. If a diagonal of... (answered by checkley77,Mathtut)
Length of a rectangle floor is 1m. less than twice its witdth. If a diagonal of the... (answered by mananth)
the length of a rectangular floor is 1 meter less than three times its width if a... (answered by jorel1380)
the length of a rectangle is 8 meters less than twice its width. if the diagonal of the (answered by checkley71)
The length of a rectangular floor is 1 meter less than three times its width. If a... (answered by josgarithmetic)
The length of a rectangular floor is twice its width. If the area of the floor is 12.5... (answered by josgarithmetic)
The area of a rectangular floor is 105 square feet. if its length is 1 more than twice... (answered by fractalier,Boreal)
The length of a rectangle is 7 meters more than the width. the length of a diagonal is 13 (answered by mducky2)