What is the length of the altitude of an equilateral triangle with side length 10?
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Question: What is the perimeter of a parallelogram with base 10cm and height 5cm, a rectangle with length 12cm and width 8cm, and a circle with radius 7cm?
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Math question: Find the length of the hypotenuse in a right triangle if the lengths of its legs are 3.5 units and 7 units.