SOLUTION: Find the length of the sides of this triangle. Two sides are equal in length and the third side is 3 centimeters shorter than one and one-half times the length of the equal sides.

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Question 404921: Find the length of the sides of this triangle. Two sides are equal in length and the third side is 3 centimeters shorter than one and one-half times the length of the equal sides. The perimeter is 28.5 centimeters.
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = the length of one of the two equal legs of this isosceles triangle.
The perimeter can be expressed by:
x%2Bx%2B%281.5x-3%29+=+28.5cm. Simplify and solve for x.
3.5x-3+=+28.5
3.5x+=+31.5
x+=+9cm.