Write the area A of an equilateral triangle as a function of the length s of its sides. STEP 1: Find the base of the equilateral triangle in terms of s. b = STEP 2: The height of an equilateral triangle can be found via the Pythagorean theorem. Use this information to find h in terms of s. h = √ 2 – 2 = STEP 3: Recall the formula for the area of a triangle: A = bh/2. Use your results from Step 1 and Step 2 to write A in terms of s.

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