Perimeter of Equilateral Triangle Formula:
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The perimeter of an equilateral triangle is the total length around the triangle, which is the sum of all three equal sides. For an equilateral triangle with side length 'a', the perimeter is given by P = 3a.
The calculator uses the formula:
Where:
Explanation: Since the semiperimeter is half of the perimeter (s = P/2), we can rearrange to find P = 2s.
Details: Calculating the perimeter of an equilateral triangle is essential in various geometric applications, construction projects, and mathematical problems involving regular polygons.
Tips: Enter the semiperimeter value in meters. The value must be positive and valid.
Q1: What is an equilateral triangle?
A: An equilateral triangle is a triangle with all three sides of equal length and all three angles equal to 60 degrees.
Q2: How is semiperimeter related to perimeter?
A: Semiperimeter is exactly half of the perimeter. For any triangle, s = (a+b+c)/2, and for equilateral triangle s = 3a/2 = P/2.
Q3: Can this formula be used for other types of triangles?
A: No, this specific formula P = 2s only applies to equilateral triangles where all sides are equal.
Q4: What are the units of measurement?
A: The calculator uses meters, but the formula works with any consistent unit of length (cm, mm, inches, etc.).
Q5: How accurate is the calculation?
A: The calculation is mathematically exact. The accuracy depends on the precision of the input value.