- #1
David Dudek
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Homework Statement
I have a seemingly simple question. I have a quadrilateral with sides (starting with the left side, moving clockwise):(7-x), (x+2), (2x-1), (x-3).
a) write an equation for the perimeter and simplify: that's easy, and done. This ends up as 3x+5
b) Find the length of all sides. Using the result from above, 3x+5 = -5/3, and would give one of the sides a -negative answer. I assume one cannot have a negative length?
Homework Equations
P = (7-x)+(x+2)+(2x-1)+(x-3)
=3x+5
x = -5/3?
The Attempt at a Solution
If x=-5/3, then;
P=(7-5/3)+(5/3+2)+(2x5/3-1)+(5/3-3)
=5 1/3 + 3 2/3 + 21/3 + -1 1/3