SOLUTION: The altitude of a rectangle is 20% less than the base and the perimeter is 18cm.Find the dimensions of the rectangle

Question 1077822: The altitude of a rectangle is 20% less than the base and the perimeter is 18cm.Find the dimensions of the rectangle
Found 2 solutions by josmiceli, josgarithmetic:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let the altitude = cm
Let the base = cm
------------------------
(1)
(1)
and
(2)
----------------------
(2)
Plug (1) into (2)
(2)
(2)
(2)
and
(1)
(1)
(1)
The rectangle is 4 x 5
-----------------------
check:
(2)
(2)
(2)
(2)
OK
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
x, base of rectangle
, altitude of rectangle

-

-
altitude is .
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