JEE Main 2022 Mathematics question
A wire of length 22 m is to be cut into two pieces. One of the pieces is to be made into a square and the other into an equilateral triangle. Then, the length of the side of the equilateral triangle, so that the combined area of the square and the equilateral triangle is minimum, is :
Answer: (2)
Solution
Let the side of the square be a and of the triangle be b, so 4a + 3b = 22. The total area is a^{2}\sqrt{3}4)b^{2}4)^{2}$ +
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