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The correct answer is D
In an equilateral triangle, the length of the side is 18 cm. A circle is inscribed in the triangle. Find the radius of the circle.
An equilateral triangle has all sides of length 14√3 cm. What is the altitude of this triangle?
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Find the area of a triangle whose sides are 12 m, 14 m, and 16 m.
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The altitude of an equilateral triangle is 6√3 cm. Find the area of the equilateral triangle.