SOLUTION: if the sides of an isosceles triangle have lengths 2x+4,x+8. The base has a length 5x-2. What is the length of the base?? show work please

Algebra ->  Triangles -> SOLUTION: if the sides of an isosceles triangle have lengths 2x+4,x+8. The base has a length 5x-2. What is the length of the base?? show work please      Log On


   

Question 388852: if the sides of an isosceles triangle have lengths 2x+4,x+8. The base has a length 5x-2. What is the length of the base?? show work please
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I know that the sides of an isosceles triangle are equal.
so, 2x+%2B+4+=+x+%2B+8
Subtract x from both sides
x+%2B+4+=+8
x+=+4
And, since the base is 5x+-+2,
base = 5%2A4+-+2
base = 18