Michael J. answered • 09/10/15

Tutor

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Understanding all Sines of Triangles

Set up variables for the three sides of the triangle.

Let the third side = x

Let the shortest side = 0.5x + 10

Let the longest side = (x + 0.5x + 10) - 12 = 1.5x - 2

The perimeter is the sum of the sides.

**x + (0.5x + 10) + (1.5x - 2) = 118**

Solve for x from this equation. Once you solved for x, substitute that value into the variables to find the 3 sides.