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A triangle has sides with lengths of 7 meters, 11 meters, and 13 meters. Is it a right triangle? What is the answer to this problem 7/10 divided by 1/5 - 4/11 * 8/7 =? What is the benefit of doing engineering? Factor of x^2+15x+56+21/22^2? Convert the equation to the standard form for a hyperbola by completing the square on x and y. x2 - y2 + 6x - 4y + 4 = 0?