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Q: What is the perimeter of an equilateral triangle with sides that are 9 inches long?

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18 inches and it is an equilateral triangle

The perimeter is the sum of all sides. An equilateral triangle has three sides of equal length. So if one side is 5 inches, and we have three of these, we get a perimeter of 15 inches.

An equilateral triangle is going to have three equal sides. The perimeter is the sum of all three sides. To find the answer, divide the Perimeter (25.2 in.) by 3 (three sides) 25.2 in. / 3 = 8.4 in.

4 inches x 3 sides = 12 inches for the perimeter.

Perimeter is the sum of the sides. An equilateral triangle has three sides of equal length. So the perimeter in this case would be 7.8mm x 3 = 23.4mm.

If it is an equilateral triangle with 3 equal sides of 4cm then its perimeter is 12cm

An equilateral triangle that has a perimeter of 57 feet has three equal sides of 19 feet.

Perimeter = 3*25 = 75 cm

If it is an equilateral triangle with 3 equal sides of 4m then its perimeter is 12cm

7 cm x 3 sides = 21 cm perimeter.

36. If the length of the line segment joining the midpoints of two sides of an equilateral triangle is 6 the perimeter of the triangle is 36.

8cm !

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