exam Maths Puzzle Numerical Ability

Find the area of an equilateral triangle with a apothem 3.5 meters long and each side 12 meters long

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exam Other Question

Twice a number increased by 12 is equal to 31 less than three times the number. Find the number. find the perimter of the triangle :
4 is one side and another side is 5square-3 square and the last side is 5 square+ 3square.

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