Find the Area of the Equilateral Triangle.
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Given radius of a quarter-circle is 20 units, what is the area of the yellow region?
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BASIC Math Calculus – AREA of a Triangle - Understand Simple Calculus with just Basic Math!
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Geometry Challenge - Find the Side of the Blue Square.
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Area of an Equilateral Triangle
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Can you solve this Cambridge Entrance Exam Question?
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Learn to Solve : Finding the area of a semicircle in a right triangle
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Surprisingly Long Math Problem
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