obtuse angle, right angle, acute angle, straight angle, obtuse angle, right angle, acute angle, straight angle, obtuse angle, right angle, acute angle, straight angle, obtuse angle, right angle, acute angle, straight angle, obtuse angle, right angle, acute angle, straight angle, What angle is ∠A0B, obtuse angle, right angle, acute angle, straight angle, obtuse angle, right angle, acute angle, straight angle, scalene triangle, equilateral triangle, isosceles triangle, scalene triangle, equilateral triangle, isosceles triangle, scalene triangle, equilateral triangle, isosceles triangle, nonagon, quadrilateral, octagon, decagon, pentagon, heptagon, nonagon, quadrilateral, octagon, decagon, pentagon, heptagon, nonagon, quadrilateral, octagon, decagon, pentagon, heptagon, nonagon, hexagon, octagon, decagon, triangle, heptagon, triangle, quadrilateral, hexagon, decagon, octagon, heptagon, nonagon, quadrilateral, octagon, decagon, pentagon, heptagon, polygon with four sides, nonagon, quadrilateral, octagon, decagon, pentagon, heptagon, nonagon, quadrilateral, octagon, decagon, pentagon, heptagon, ray, line segment, line, point, parallel lines, perpendicular, ray, line segment, line, point, parallel lines, perpendicular, ray, line segment, line, point, parallel lines, perpendicular, line, line segment, parallel, point, ray, line, line segment, parallel, point, ray, intersecting lines, line, line segment, parallel, point, ray, intersecting lines, line, line segment, parallel, point, ray, intersecting lines, line, line segment, parallel lines, point, ray, intersecting lines

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