Question

Find the perimeter of an equilateral triangle that has an attitude of 25 inches. Round your answer to the nearest 10

Answer 1

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Answer:

86.6 inches

Explanation:

The side length of an equilateral triangle is 2/√3 times the altitude. So, the perimeter is ...

P = 3s = 3(25)(2/√3) = 50√3 ≈ 86.6 . . . . inches