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Area of 30-60-90 Triangle

Area Formula:

\[ A = \frac{\sqrt{3}}{4} \times x^2 \]

meters

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1. What is a 30-60-90 Triangle Area Calculator?

Definition: This calculator computes the area of a special right triangle with angles of 30°, 60°, and 90° based on the length of its short leg.

Purpose: It helps students, engineers, and designers quickly calculate the area of this common triangle type without manual calculations.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ A = \frac{\sqrt{3}}{4} \times x^2 \]

Where:

Explanation: The formula derives from the properties of 30-60-90 triangles where the sides are in ratio 1:√3:2.

3. Importance of 30-60-90 Triangle Calculation

Details: These triangles are fundamental in trigonometry and appear frequently in engineering, architecture, and design projects.

4. Using the Calculator

Tips: Simply enter the length of the short leg in meters. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are the side ratios of a 30-60-90 triangle?
A: The sides opposite 30°:60°:90° are in ratio 1:√3:2, where the short leg (x) is opposite the 30° angle.

Q2: Can I calculate area using the hypotenuse?
A: Yes, but you'd need a different formula. This calculator specifically uses the short leg length.

Q3: Why is √3 involved in the formula?
A: The √3 comes from the ratio of the longer leg to the short leg in these special triangles.

Q4: What if I only know the longer leg length?
A: First divide the longer leg by √3 to find the short leg, then use this calculator.

Q5: How precise are the calculations?
A: Results are accurate to 3 decimal places, sufficient for most practical applications.

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