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Lesson: Geometry - 19

Finding The Perimeter Of A Triangle

[Page 19 of 30]

Like any polygon, the perimeter is the total distance around the outside, which can be found by adding together the length of each side. Or as a formula:
Perimeter = a + b + c, where a, b, and c are sides of a triangle.

What is the perimeter of the isosceles triangle in the diagram below? Choose an answer, and then click Continue.

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