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OpenStudy (anonymous):
What is the perimeter of an isosceles triangle with base of 13 m and congruent sides of 9 m?
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OpenStudy (mathstudent55):
If it's an isosceles triangle, that means at least two sides have the same length. The perimeter is the sum of the lengths of the sides.
OpenStudy (anonymous):
13 + 9 + 9 = 31 m.
OpenStudy (mathstudent55):
Correct.
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