​perimeter of the triangle is 39m

Algebra
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perimeter of the triangle is 39m

if one side is 12m and the other side is 12m what number is the missing side 

Sep 9th, 2015

Thank you for the opportunity to help you with your question!

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Let the length of the missing side be x.

Perimeter of triangle = sum of lengths of all three sides

39 = 12 + 12 + x

39 = 24 + x

or

24 + x = 39

x = 39 - 24

x = 15


So, length of missing side = x = 15 m

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Sep 9th, 2015

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