Question: What is the area of a rectangle with length 10 units and width 5 units? What is the circumference of a circle with radius 4 units? What is the area of a parallelogram with base 12 units and height 8 units?
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What is the value of sin(45°) + cos(30°)?
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What is the area of a triangle with side lengths 13, 14, and 15 using Heron's formula?