SOLUTION: Isosceles triangle is a triangle with two congruent(equal)sides. If the third side is 3 times the length of the congruent sides and the perimeter is 75 centimeters. Find the length

Question 310838: Isosceles triangle is a triangle with two congruent(equal)sides. If the third side is 3 times the length of the congruent sides and the perimeter is 75 centimeters. Find the length of all 3 sides of the triangle.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Let x = the length of one of the congruent sides.
The perimeter (P) can be expressed as:

Substitute P = 75.

The lengths of the sides are:
15cm., 15cm., and 45cm.
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