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If the height of the equilateral triangl...

If the height of the equilateral triangle is `2sqrt(3) cm`, then determine the area (in `cm^2`) of the equilateral triangle.

A

`6`

B

`2sqrt(3)`

C

`4sqrt(3)`

D

`12`

Text Solution

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The correct Answer is:
To find the area of an equilateral triangle given its height, we can use the formula for the area of an equilateral triangle in terms of its height \( h \): \[ \text{Area} = \frac{h^2}{\sqrt{3}} \] ### Step-by-Step Solution: 1. **Identify the height of the triangle**: The height \( h \) of the equilateral triangle is given as \( 2\sqrt{3} \) cm. 2. **Substitute the height into the area formula**: \[ \text{Area} = \frac{(2\sqrt{3})^2}{\sqrt{3}} \] 3. **Calculate \( (2\sqrt{3})^2 \)**: \[ (2\sqrt{3})^2 = 2^2 \cdot (\sqrt{3})^2 = 4 \cdot 3 = 12 \] 4. **Substitute back into the area formula**: \[ \text{Area} = \frac{12}{\sqrt{3}} \] 5. **Rationalize the denominator**: \[ \text{Area} = \frac{12 \cdot \sqrt{3}}{3} = 4\sqrt{3} \] 6. **Final answer**: The area of the equilateral triangle is \( 4\sqrt{3} \) cm².
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