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(4 points) Determine whether the following statements are True or False (0.5 point for each entry) : 1. A triangle whose sides are all the same length is called an equilateral triangle. 2. - Two angles, the sum of whose measures is 180, are called complementary angles. 3. _ Opposite sides of a parallelogram are equal and parallel. 4. _ An angle whose measure is greater than 90 but less than 180 is called an acute angle. 5. The sum of the measures of the interior angles of a triangle is 180. 6. The sum of the measures of the interior angles of a hexagon is 720. 7. _ A parallelogram with all sides of equal length without any right angles is called a square. 8. _ A triangle that has no sides of the same length is called an obtuse triangle