Triangle Perimeter #2

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Taught by YourMathGal
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Meets NCTM Standards:
Lesson Description:

Solves this geometry problem: In an isosceles triangle, two of the sides have the same length. The other side is 10 cm less than twice the length of one of the equal sides. The perimeter is 46 cm. Find the measure of each side.

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Questions answered by this video:
  • In an isosceles triangle, the side that is not equal is 8cm less than thrice the length of the equal side.The perimeter is 37.Find the lengths of each side.