SOLUTION: The perimeter of an isosceles triangle is 35 cm. If the length of each of the congruent sides is 3 times the length of the third side, find the dimensions of the triangle. So f

Algebra ->  Triangles -> SOLUTION: The perimeter of an isosceles triangle is 35 cm. If the length of each of the congruent sides is 3 times the length of the third side, find the dimensions of the triangle. So f      Log On


   



Question 419652: The perimeter of an isosceles triangle is 35 cm. If the length of each of the congruent sides is 3 times the length of the third side, find the dimensions of the triangle.
So far I've got:
a + b + c = 35
3b = a
3b = c
I'm not sure if that's even right, though.
Thank you.

Answer by dnanos(83) About Me  (Show Source):
You can put this solution on YOUR website!
You have to continue:
3b+3b+b=35
7b=35
b=35/7
b=5
a=c=3*5=15