If the length of one side of a triangle
Is 2x - 1 units and the perimeter is 18
What is x?
3 answers
what kind of triangle is it. and on what side?
It is just a regular triangle and the equation was not. Placed anywhere around the triangle
im assuming youre talking about an equilateral triangle.
the perimeter is A+b+C=18
and one side is 2x-1 so
so 2x-1+2x-1+2x-1=18
combine like terms
6x-3=18
so 21/6=x
x=3.5
the perimeter is A+b+C=18
and one side is 2x-1 so
so 2x-1+2x-1+2x-1=18
combine like terms
6x-3=18
so 21/6=x
x=3.5