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2 votes
A plus 5 is the side of an equilateral triangle. find it's perimeter

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User Hamidi
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2 Answers

3 votes
one side = a + 5
there are 3 equal sides on an equilateral triangle

3(a+5) = 3a+15
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User Vexatus
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4 votes
a+5 = 1 side, so the perimeter is 3(a+5) or P = 3a+15
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User Davejoem
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8.7k points

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