SOLUTION: the base of an isosceles triangle is one-third the length of each of the congruent sides. The perimeter of the triangle is 84 cm. How long is the base?

Question 226267: the base of an isosceles triangle is one-third the length of each of the congruent sides. The perimeter of the triangle is 84 cm. How long is the base?
Found 2 solutions by scott8148, solver91311:
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
if the base is X, then each of the congruent sides is 3X and the perimeter is 7X

7X = 84 ___ X = 12
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Solve for

John

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