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Home > PC > Chapter 5 > Lesson 5.1.3 > Problem 5-37


An equilateral triangle has an edge length of . What is the area of the triangle in terms of ? Use exact (not calculator) values.

1. Draw a diagram.
2. Drop a perpendicular line from one of the vertices to the opposite side.
3. Label the sides. Find the height.
4. Use the formula for the area of a triangle.