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Area of a Triangle Calculator Given 3 Sides

Triangle Area Formula (Heron's Formula):

\[ s = \frac{a + b + c}{2} \] \[ \text{Area} = \sqrt{s(s - a)(s - b)(s - c)} \]

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meters
meters

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1. What is the Area of a Triangle Calculator?

Definition: This calculator computes the area of a triangle when you know the lengths of all three sides using Heron's formula.

Purpose: It helps in geometry, construction, and design projects where you need to determine the area of a triangular space.

2. How Does the Calculator Work?

The calculator uses Heron's formula:

\[ s = \frac{a + b + c}{2} \] \[ \text{Area} = \sqrt{s(s - a)(s - b)(s - c)} \]

Where:

Explanation: First calculate the semi-perimeter, then use it in Heron's formula to find the area.

3. Importance of Triangle Area Calculation

Details: Accurate area calculation is essential for material estimation, land measurement, architectural design, and various engineering applications.

4. Using the Calculator

Tips: Enter the lengths of all three sides in the same units (e.g., meters). All values must be positive and satisfy the triangle inequality theorem.

5. Frequently Asked Questions (FAQ)

Q1: What is the triangle inequality theorem?
A: It states that the sum of any two sides of a triangle must be greater than the third side (a + b > c, a + c > b, b + c > a).

Q2: Can I use different units for different sides?
A: No, all sides must be in the same unit for the calculation to be valid.

Q3: What if I get an error message?
A: Check that your side lengths satisfy the triangle inequality theorem (sum of any two sides > third side).

Q4: How accurate is the calculation?
A: The calculation is mathematically precise, though real-world measurements may have practical limitations.

Q5: Can I use this for any type of triangle?
A: Yes, Heron's formula works for all types of triangles (scalene, isosceles, equilateral, right-angled).

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