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Geometry. Line segment. ray. line. Right angle. Acute angle. Obtuse angle. Right triangle. Obtuse triangle. Acute triangle. Equilateral triangle. Isosceles triangle. Scalene triangle. Quadrilaterals. Any closed figure with four sides. rectangle. square. parallelogram. rhombus.
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Quadrilaterals • Any closed figure with four sides
-gon • angle
3 4 8 5 6
One angle is obtuse All sides are equal Al l three angles are acute Two sides are the same length One angle is a right angle No sides are the same length
There are 4 right angles There are 4 right angles Opposite sides are parallel and all sides are the same length Opposites sides are parallel There is only one pair of parallel sides