SOLUTION: An isosceles triangle is a triangle with two sides having the same measurement and one side having a different measurement. The longest side of an isosceles triangle is 12 cm less

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Question 451585: An isosceles triangle is a triangle with two sides having the same measurement and one side having a different measurement. The longest side of an isosceles triangle is 12 cm less than twice as long as the other sides. The perimeter of the triangle is 104 cm. Find the lengths of the three sides and list them in ascending order.

Answer by Gogonati(855) About Me  (Show Source):
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Let's be x cm, one from the two equal sides of the isosceles triangle, since its perimeter is 104 cm and the longest side is 2x-12, we write the equation:
2x+(2x-12)=104 => 4x=116 => x=29.
Answer:The two equal sides are 29 cm each, and the long side is 2*29-12=46 cm.